A153864 - OEIS

A153864

Triangle read by rows, A000012 * A153860 * (A066983 * 0^(n-k))

1, 1, 1, 2, 2, 1, 1, 2, 2, 3, 2, 2, 2, 6, 3, 1, 2, 2, 6, 6, 7, 2, 2, 2, 6, 6, 14, 9, 1, 2, 2, 6, 6, 14, 18, 17, 2, 2, 2, 6, 6, 14, 18, 34, 25, 1, 2, 2, 6, 6, 14, 18, 34, 50, 43, 2, 2, 2, 6, 6, 14, 18, 34, 50, 86, 67

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OFFSET

0,4

COMMENTS

Row sums = A066629: (1, 2, 5, 8, 15, 24, 41, 66, 109,...).

Right border = A066983: (1, 1, 1, 3, 3, 7, 9, 17,...).

LINKS

Table of n, a(n) for n=0..65.

FORMULA

Triangle read by rows, A000012 * A153860 * (A066983 * 0^(n-k))

Given triangle A000012 * A153860 = partial sums of A153860 starting from the top.

(A066983 * 0^n-k) = an infinite lower triangular matrix with A066983 as the

main diagonal: (1, 1, 1, 3, 3, 7, 9, 17, 25,...) and the rest zeros.

EXAMPLE

First few rows of the triangle =

1, 1;

2, 2, 1;

1, 2, 2, 3;

2, 2, 2, 6, 3;

1, 2, 2, 6, 6, 7;

2, 2, 2, 6, 6, 14, 9;

1, 2, 2, 6, 6, 14, 18, 17;

2, 2, 2, 6, 6, 14, 18, 34, 25;

1, 2, 2, 6, 6, 14, 18, 34, 50, 43;

...

CROSSREFS

Cf. A153860, A066983, A066629

Sequence in context: A337530 A269982 A329462 * A345128 A112399 A349040

Adjacent sequences: A153861 A153862 A153863 * A153865 A153866 A153867

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jan 03 2009

STATUS

approved