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1, 2, 1, 4, 1, 1, 6, 2, 1, 1, 10, 2, 1, 1, 1, 12, 4, 2, 1, 1, 1, 18, 4, 2, 1, 1, 1, 1, 22, 6, 2, 2, 1, 1, 1, 1, 28, 6, 4, 2, 1, 1, 1, 1, 1, 32, 10, 4, 2, 2, 1, 1, 1, 1, 1
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Row sums = the triangular series, A000217: (1, 3, 6, 10,...). Left column = A002088: (1, 2, 4, 6, 10, 12, 18,...).
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FORMULA
| A000012 * A054523 as infinite lower triangular matrices.
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EXAMPLE
| First few rows of the triangle are:
1;
2, 1;
4, 1, 1;
6, 2, 1, 1;
10, 2, 1, 1, 1;
12, 4, 2, 1, 1, 1;
18, 4, 2, 1, 1, 1, 1;
...
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CROSSREFS
| Cf. A000012, A054523, A000217.
Sequence in context: A131035 A118745 A131034 * A124428 A191310 A124845
Adjacent sequences: A130310 A130311 A130312 * A130314 A130315 A130316
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), May 21 2007
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