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Search: id:A134542
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| 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 3, 3, 2, 1, 1, 2, 3, 3, 2, 1, 1, 3, 4, 4, 3, 2, 1, 1, 3, 4, 4, 4, 3, 2, 1, 1, 3, 4, 5, 5, 4, 3, 2, 1, 1, 2, 4, 5, 5, 5, 4, 3, 2, 1
(list; table; graph; listen)
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OFFSET
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1,5
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COMMENT
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Row sums = A002088: (1, 2, 4, 6, 10, 12, 18, 22,...). A134542 * [1,2,3,...] = A015631: (1, 3, 8, 15, 29, 42,...).
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FORMULA
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A134541 * A000012 as infinite lower triangular matrices. Triangle read by rows, partial sums of A134541 terms starting from the right.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
1, 2, 1;
1, 2, 2, 1;
1, 3, 3, 2, 1;
1, 2, 3, 3, 2, 1;
1, 3, 4, 4, 3, 2, 1;
1, 3, 4, 4, 4, 3, 2, 1;
1, 3, 4, 5, 5, 4, 3, 2, 1;
1, 2, 4, 5, 5, 5, 4, 3, 2, 1;
...
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CROSSREFS
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Cf. A134541, A002088, A015631.
Sequence in context: A083415 A115514 A122632 this_sequence A106254 A117147 A111007
Adjacent sequences: A134539 A134540 A134541 this_sequence A134543 A134544 A134545
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 31 2007
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