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A020527 2nd Bernoulli polynomial evaluated at powers of 2 (multiplied by 6). 1
1, 13, 73, 337, 1441, 5953, 24193, 97537, 391681, 1569793, 6285313, 25153537, 100638721, 402604033, 1610514433, 6442254337, 25769410561, 103078428673, 412315287553, 1649264295937, 6597063475201 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n) = 6*(4^n - 2^n) + 1. - Ralf Stephan, Apr 06 2004
G.f.: (-1 - 6*x + 4*x^2) / ((x-1)*(2*x-1)*(4*x-1)). - R. J. Mathar, Jun 11 2013
MAPLE
seq(bernoulli(2, 2^i), i=0..24);
PROG
(Magma) [6 * (4^n - 2^n) + 1: n in [0..40]]; // Vincenzo Librandi, Apr 25 2011
CROSSREFS
Sequence in context: A107963 A006230 A066110 * A146618 A220414 A139157
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)