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A134870 A051731 + A000012 - A103451. 1
1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,8

COMMENTS

Row sums = A134871: (1, 2, 3, 5, 5, 8, 7, 10, 10, 12, 11,...).

LINKS

Table of n, a(n) for n=1..55.

FORMULA

A051731 + A000012 - A103451 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

1, 1;

1, 1, 1;

1, 2, 1, 1;

1, 1, 1, 1, 1;

1, 2, 2, 1, 1, 1;

1, 1, 1, 1, 1, 1, 1;

1, 2, 1, 2, 1, 1, 1, 1;

...

CROSSREFS

Cf. A051731, A134871, A103451, A000012.

Sequence in context: A290104 A308479 A031280 * A031286 A031276 A305080

Adjacent sequences:  A134867 A134868 A134869 * A134871 A134872 A134873

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Nov 14 2007

STATUS

approved

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Last modified October 23 17:32 EDT 2019. Contains 328373 sequences. (Running on oeis4.)