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Search: id:A064319
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| A064319 |
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Triangle with a(n,1)=n and a(n,k)=a(n-1,k)*a(n-1,k-1). |
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4
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| 1, 2, 2, 3, 6, 12, 4, 12, 72, 864, 5, 20, 240, 17280, 14929920, 6, 30, 600, 144000, 2488320000, 37150418534400000, 7, 42, 1260, 756000, 108864000000, 270888468480000000000, 10063619980174622195712000000000000000, 8, 56
(list; table; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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Rows start 1; 2,2; 3,6,12; 4,12,72,864; etc.
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CROSSREFS
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Columns include A000027, A002378, A047928, A064321. Right-hand side is A064320. Cf. A053218 which uses addition rather than multiplication to produce binomial transform.
Sequence in context: A102762 A049853 A162599 this_sequence A064674 A095902 A103687
Adjacent sequences: A064316 A064317 A064318 this_sequence A064320 A064321 A064322
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KEYWORD
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nonn,tabl
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AUTHOR
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Henry Bottomley (se16(AT)btinternet.com), Sep 10 2001
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