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A130329 A059268 * A130321. 1
1, 5, 2, 21, 10, 4, 85, 42, 20, 8, 341, 170, 84, 40, 16, 1365, 682, 340, 168, 80, 32, 5461, 2730, 1364, 680, 336, 160, 64, 21845, 10922, 5460, 2728, 1360, 672, 320, 128, 87381, 43690, 21844, 10920, 5456, 2720, 1344, 640, 256 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Row sums = A006095: (1, 7, 35, 155, 651, 2667,...). Left border = A002450: (1, 5, 21, 85, 341, 1365,...). A130238 = A130321 * A059268.

LINKS

Table of n, a(n) for n=0..44.

FORMULA

A059268 * A130321 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

5, 2;

21, 10, 4;

85, 42, 20, 8;

341, 170, 84, 40, 16;

...

CROSSREFS

Cf. A059268, A130321, A006095, A002450, A130328.

Sequence in context: A303685 A189746 A191667 * A096035 A036165 A246798

Adjacent sequences:  A130326 A130327 A130328 * A130330 A130331 A130332

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, May 24 2007

STATUS

approved

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Last modified December 8 05:44 EST 2021. Contains 349590 sequences. (Running on oeis4.)