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 A256490 First differences of A257512: a(n) = A257512(n+1) - A257512(n). 3
 8, 7, 9, 7, 13, 2, 10, 7, 13, 2, 14, 8, 7, 2, 11, 7, 13, 2, 14, 8, 7, 2, 15, 8, 7, 9, 7, 14, 1, 2, 12, 7, 13, 2, 14, 8, 7, 2, 15, 8, 7, 9, 7, 14, 1, 2, 16, 8, 7, 9, 7, 14, 1, 10, 7, 14, 1, 15, 8, 7, 1, 2, 13, 7, 13, 2, 14, 8, 7, 2, 15, 8, 7, 9, 7, 14, 1, 2, 16, 8, 7, 9, 7, 14, 1, 10, 7, 14, 1, 15, 8, 7, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS It seems that for all n >= 1, Sum_{k=1 .. 2^n} a(k) = 2^(n+3) - 1 = A000225(n+3). LINKS Antti Karttunen, Table of n, a(n) for n = 1..16384 FORMULA a(n) = A257512(n+1) - A257512(n). PROG (Scheme) (define (A256490 n) (- (A257512 (+ n 1)) (A257512 n))) CROSSREFS Cf. A000225, A257512, A256489. Sequence in context: A242968 A021536 A199389 * A197688 A094082 A318378 Adjacent sequences: A256487 A256488 A256489 * A256491 A256492 A256493 KEYWORD nonn AUTHOR Antti Karttunen, May 03 2015 STATUS approved

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Last modified January 27 10:15 EST 2023. Contains 359838 sequences. (Running on oeis4.)