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A088575 Bisection of A088567. 2
1, 1, 2, 4, 6, 9, 13, 18, 24, 31, 40, 50, 63, 77, 95, 114, 138, 163, 194, 226, 266, 307, 357, 408, 471, 535, 612, 690, 785, 881, 995, 1110, 1248, 1387, 1550, 1714, 1908, 2103, 2329, 2556, 2822, 3089, 3396, 3704, 4061, 4419, 4827, 5236, 5707, 6179, 6714, 7250, 7862 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Contribution from Gary W. Adamson, Jul 27 2010: (Start)

(1 + x^2 + x^3 + x^4 + x^5 + ...) * (1 + x + x^2 + 2x^3 + 3x^4 ...) =

(1 + x + 2x^2 + 4x^3 + 6x^4 + ...). (End)

LINKS

Table of n, a(n) for n=0..52.

FORMULA

a(n) = a(n-1)+a(floor(n/2))+(1-(-1)^n)/2, n>1. - Vladeta Jovovic, Dec 02 2003

CROSSREFS

Cf. A088567, A088585.

Equals A088585-1.

Sequence in context: A001304 A000064 A001305 * A177189 A026906 A164315

Adjacent sequences:  A088572 A088573 A088574 * A088576 A088577 A088578

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 30 2003

STATUS

approved

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Last modified November 19 02:51 EST 2018. Contains 317332 sequences. (Running on oeis4.)