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 A249720 a(n) = 2 * A249719(n). 6

%I

%S 10,16,28,30,32,34,40,46,48,50,52,64,70,82,84,86,88,90,92,94,96,98,

%T 100,102,104,106,112,118,120,122,124,130,136,138,140,142,144,146,148,

%U 150,152,154,156,158,160,172,178,190,192,194,196,202,208,210,212,214,226,232,244,246,248,250,252,254,256

%N a(n) = 2 * A249719(n).

%C Gives the positions of odd terms in A249733.

%H Antti Karttunen, <a href="/A249720/b249720.txt">Table of n, a(n) for n = 1..10000</a>

%F a(n) = 2 * A249719(n).

%o (Scheme) (define (A249720 n) (* 2 (A249719 n)))

%Y Cf. A249719, A249733.

%K nonn

%O 1,1

%A _Antti Karttunen_, Nov 14 2014

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Last modified December 3 20:09 EST 2021. Contains 349468 sequences. (Running on oeis4.)