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A261679 Number of ordered pairs (u,v) of binary palindromes (see A006995) with u+v=n. 3
1, 2, 1, 2, 2, 2, 3, 2, 4, 2, 5, 0, 4, 0, 3, 2, 4, 2, 5, 0, 4, 2, 6, 0, 6, 0, 4, 2, 4, 0, 5, 2, 6, 2, 7, 0, 8, 0, 6, 0, 4, 0, 5, 0, 2, 2, 4, 0, 8, 0, 4, 2, 6, 0, 7, 0, 2, 0, 4, 0, 6, 0, 3, 2, 4, 2, 9, 0, 6, 0, 4, 0, 8, 2, 4, 0, 4, 0, 8, 0, 6, 0, 6, 0, 4, 2, 4, 0, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 0..9999

FORMULA

G.f. = (Sum_{p in A006995} x^p)^2.

EXAMPLE

8=1+7=3+5=5+3=7+1, so a(8)=4.

CROSSREFS

Cf. A006995, A261680.

For zeros see A241491, A261678.

Sequence in context: A036497 A211976 A035460 * A147657 A029232 A221531

Adjacent sequences:  A261676 A261677 A261678 * A261680 A261681 A261682

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Sep 04 2015

STATUS

approved

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Last modified October 15 05:41 EDT 2019. Contains 328026 sequences. (Running on oeis4.)