Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #36 Jun 24 2017 05:32:51
%S 0,1,3,2,5,4,6,8,7,11,9,10,12,13,15,14,16,18,17,19,20,22,21,23,25,24,
%T 27,26,28,29,31,30,32,33,35,34,36,38,37,40,39,41,44,42,43,45,46,47,49,
%U 48,50,51,53,52,54,55,57,56,58,60,59,62,61,64,65,63,66,68,67,70,71,69,72,73,75,74,76,77,78
%N Leading column of right triangle in A274650.
%C Theorem: This is a permutation of the positive integers. For proof, see link in A274650. - _N. J. A. Sloane_, Jun 07 2017
%H Alois P. Heinz, <a href="/A286294/b286294.txt">Table of n, a(n) for n = 0..1000</a>
%F a(n) = A274650(n,0) = A274651(n+1,1) - 1. - _Hartmut F. W. Hoft_, Jun 13 2017
%t (* function a274651[] is defined in A274651 for n>=1 *)
%t a286294[n_] := Map[First, a274651[n+1]-1]
%t a286294[78] (* data *) (* _Hartmut F. W. Hoft_, Jun 13 2017 *)
%Y Cf. A274650, A274651, A286295, A288384, A288424.
%K nonn
%O 0,3
%A _N. J. A. Sloane_, May 30 2017