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Search: id:A081417
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| A081417 |
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A000720 applied to Pascal-triangle: Pi[C(n,j)], j,0..n and n=0,1,2,... |
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+0
2
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| 0, 0, 0, 0, 1, 0, 0, 2, 2, 0, 0, 2, 3, 2, 0, 0, 3, 4, 4, 3, 0, 0, 3, 6, 8, 6, 3, 0, 0, 4, 8, 11, 11, 8, 4, 0, 0, 4, 9, 16, 19, 16, 9, 4, 0, 0, 4, 11, 23, 30, 30, 23, 11, 4, 0, 0, 4, 14, 30, 46, 54, 46, 30, 14, 4, 0, 0, 5, 16, 38, 66, 89, 89, 66, 38, 16, 5, 0, 0, 5, 18, 47, 94, 138, 157, 138, 94
(list; table; graph; listen)
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OFFSET
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0,8
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EXAMPLE
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Triangle begins:
0,
0,0,
0,1,0,
0,2,2,0,
0,2,3,2,0,
0,3,4,4,3,0,
0,3,6,8,6,3,0,
0,4,8,11,11,8,4,0,
0,4,9,16,19,16,9,4,0,
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MATHEMATICA
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Flatten[Table[Table[PrimePi[Binomial[n, j]],
{j, 0, n}], {n, 0, 15}], 1]
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CROSSREFS
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Cf. A000720.
Adjacent sequences: A081414 A081415 A081416 this_sequence A081418 A081419 A081420
Sequence in context: A039972 A031124 A063695 this_sequence A133388 A109042 A128540
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KEYWORD
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nonn,tabl
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Apr 02 2003
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