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Search: id:A126442
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| A126442 |
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First in a series of triangular arrays which comprise subsequences of A096443(n). |
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+0
5
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| 1, 2, 2, 3, 4, 5, 5, 7, 11, 15, 7, 12, 21, 36, 52, 11, 19, 38, 74, 135, 203, 15, 30, 64, 141, 296, 566, 877, 22, 45, 105, 250, 592, 1315, 2610, 4140
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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The second array begins 9 16 26 29 52 92 47 98 198 371 and when the arrays are alligned as illustrated in triangle A126441 with p(n) values they sum to A035310 which counts unordered multisets.
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EXAMPLE
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This first array includes only the hook cases. A096443(9,14,16) correspond to partitions [2,2], [3,2] and [2,2,1] so these values do not appear in A126442.
The array begins:
1
2 2
3 4 5
5 7 11 15
7 12 21 36 52
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CROSSREFS
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Cf. A000041 A000070 A082775 A093802 A000291 A002763 A000412 A060243 A035310 A000110 A035098.
Sequence in context: A015743 A015755 A096443 this_sequence A129306 A114094 A093936
Adjacent sequences: A126439 A126440 A126441 this_sequence A126443 A126444 A126445
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KEYWORD
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nonn,tabl
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AUTHOR
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Alford Arnold (Alford1940(AT)aol.com), Jan 28 2007
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