A151782 - OEIS

%I #9 Feb 18 2026 17:12:32

%S 1,8,8,56,8,56,56,392,8,56,56,392,56,392,392,2744,8,56,56,392,56,392,

%T 392,2744,56,392,392,2744,392,2744,2744,19208,8,56,56,392,56,392,392,

%U 2744,56,392,392,2744,392,2744,2744,19208,56,392,392,2744,392,2744,2744,19208,392

%N a(1)=1; for n > 1, a(n)=8*7^{wt(n-1)-1}.

%H Paolo Xausa, <a href="/A151782/b151782.txt">Table of n, a(n) for n = 1..10000</a>

%t Join[{1}, 8*7^(DigitSum[Range[100], 2] - 1)] (* _Paolo Xausa_, Feb 18 2026 *)

%Y Cf. A151779, A151780, etc.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Jun 25 2009