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A140659 Floor(A140657(n+1)/10). 0
0, 0, 1, 2, 6, 12, 25, 50, 102, 204, 409, 818, 1638, 3276, 6553, 13106, 26214, 52428, 104857, 209714, 419430, 838860, 1677721, 3355442, 6710886, 13421772, 26843545, 53687090, 107374182, 214748364, 429496729, 858993458, 1717986918, 3435973836 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

FORMULA

a(2n+2)=4*a(2n)+A000034(n).

a(2n+1)=2a(2n).

CROSSREFS

Cf. A093387.

Sequence in context: A045925 A128020 A116562 * A099495 A151385 A034875

Adjacent sequences:  A140656 A140657 A140658 * A140660 A140661 A140662

KEYWORD

nonn,less,base

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Jul 10 2008

EXTENSIONS

Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 29 2008

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Last modified February 15 13:35 EST 2012. Contains 205802 sequences.