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A134392 A077018 * A000012. 1
1, 2, 1, 4, 3, 1, 8, 7, 4, 1, 15, 14, 10, 5, 1, 26, 25, 20, 13, 6, 142, 41, 35, 26, 16, 7, 164, 63, 56, 45, 32, 19, 8, 1, 93, 92, 84, 71, 55, 38, 22, 9, 1130, 129, 120, 105, 86, 65, 44, 25, 10, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Left border = A000125. Row sums = A134393: (1, 3, 8, 20, 45, 91, 168, 288,...).

LINKS

Table of n, a(n) for n=1..52.

FORMULA

A077018 * A000012 as infinite lower triangular matrices. Triangle read by rows, partial sums starting from the right of A077028.

EXAMPLE

First few rows of the triangle are;

1;

2, 1;

4, 3, 1;

8, 7, 4, 1;

15, 14, 10, 5, 1;

26, 25, 20, 13, 6, 1;

42, 41, 35, 26, 16, 7, 1;

...

CROSSREFS

Cf. A077018, A000125, A134393.

Sequence in context: A134626 A115450 A109435 * A048483 A276562 A055248

Adjacent sequences:  A134389 A134390 A134391 * A134393 A134394 A134395

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Oct 23 2007

STATUS

approved

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Last modified October 19 13:01 EDT 2019. Contains 328222 sequences. (Running on oeis4.)