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 #11 Mar 09 2022 03:37:13
%S 1,4,7,16,25,34,37,64,67,85,97,118,130,142,160,196,214,238,244,259,
%T 268,289,307,310,322,364,370,442,448,463,466,490,496,505,511,520,547,
%U 553,601,616,625,631,694,709,736,748,751,772,793,799,820,883,886,916,961
%N a(n) = A031160(n)/2.
%H Amiram Eldar, <a href="/A348771/b348771.txt">Table of n, a(n) for n = 1..10000</a>
%Y Cf. A000959, A031158, A031159, A031160.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Nov 06 2021
%E More terms from _Amiram Eldar_, Mar 09 2022