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A131374

1, 2, 1, 1, 2, 1, 2, 1, 3, 1, 1, 3, 3, 3, 1, 2, 1, 7, 3, 4, 1, 1, 4, 5, 8, 6, 4, 1, 2, 1, 12, 5, 15, 6, 5, 1, 1, 5, 7, 16, 15, 16, 10, 5, 1, 2, 1, 18, 7, 36, 15, 27, 10, 6, 1

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OFFSET

0,2

COMMENTS

Row sums = the Lucas numbers, A000032 starting (1, 3, 4, 7, 11, 18,...).

LINKS

Table of n, a(n) for n=0..54.

FORMULA

A046854 + A065941 - A049310 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

2, 1;

1, 2, 1;

2, 1, 3, 1;

1, 3, 3, 3, 1

2, 1, 7, 3, 4, 1;

1, 4, 5, 8, 6, 4, 1;

...

CROSSREFS

Cf. A046854, A065941, A049310, A000032.

Sequence in context: A051194 A134838 A049843 * A360286 A207409 A013632

Adjacent sequences: A131371 A131372 A131373 * A131375 A131376 A131377

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jul 03 2007

STATUS

approved

URL: https://oeis.org/A131374

⇱ A131374 - OEIS