From Ian: q=.*~+3+]
q i.10 3 5 9 15 23 33 45 59 75 93 Wow! even more concise! I would have never thought to look that sequence up on OEIS for the formula. Skip Skip Cave Cave Consulting LLC On Sun, Mar 6, 2022 at 12:37 AM Ian Clark <earthspo...@gmail.com> wrote: > Let's cheat and look it up in oeis.org … > Skip's sequence is A027688, dropping the first term > A027688 is defined as: (n^2 + n + 3) > but (n*n + n + 3) gives better results with (13 :) > > q=: 13 : '(y*y) + y + 3' > > q > > *~ + 3 + ] > > q >:i.10 > > 5 9 15 23 33 45 59 75 93 113 > > > Has anyone tried automating OEIS lookup? It could be the basis for a nifty > new primitive adverb: (...) as in: > > 5 9 15 23 33 ... > > On Sun, 6 Mar 2022 at 02:11, Elijah Stone <elro...@elronnd.net> wrote: > > > Ah, David beat me to it! :) > > > > On Sat, 5 Mar 2022, Elijah Stone wrote: > > > > > Here's how I would do it: > > > > > > 3++/\+:i.10 > > > 3 5 9 15 23 33 45 59 75 93 > > > > > > This preserves the 'missing' initial term of 3. If you don't want it, > > > replace i.10 with >:i.10. > > > > > > -E > > > > > > On Sat, 5 Mar 2022, 'Skip Cave' via Programming wrote: > > > > > >> I have this series: > > >> > > >> 5 9 15 23 33 .... > > >> > > >> 5+4 > > >> > > >> 9 > > >> > > >> 9+6 > > >> > > >> 15 > > >> > > >> 15+8 > > >> > > >> 23 > > >> > > >> 23+10 > > >> > > >> 33 > > >> > > >> > > >> How can I use the power conjunction to generate this series? > > >> > > >> Is there a more concise method to generate this than the power > > conjunction? > > >> > > >> > > >> Skip > > >> > > >> > > >> Skip Cave > > >> Cave Consulting LLC > > >> ---------------------------------------------------------------------- > > >> For information about J forums see > http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > > > For information about J forums see http://www.jsoftware.com/forums.htm > > > > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
