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Search: id:A085289
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| A085289 |
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Number of sorted multiplicative partitions of n! of length n. |
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+0
5
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| 0, 0, 1, 1, 2, 2, 5, 12, 31, 31, 78, 78, 191, 418, 1220, 1220, 3015, 3015, 7889, 15413, 37012, 37012, 100559, 211426, 501520, 1157544, 2880550, 2880550, 6307387, 6307387, 17134912, 32298263, 75200323, 148928952, 359182792, 359182792
(list; graph; listen)
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OFFSET
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2,5
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COMMENT
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If p is prime then a(p) = a(p-1). - David Wasserman (wasserma(AT)spawar.navy.mil), Jan 31 2005
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LINKS
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Eric Weisstein's World of Mathematics, Alladi-Grinstead Constant
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EXAMPLE
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4! = 2*2*2*3, so a(4)=1.
6! = 2*2*2*2*5*9 = 2*2*3*3*4*5, so a(6)=2.
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CROSSREFS
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Cf. A085288, A085290, A085291.
Adjacent sequences: A085286 A085287 A085288 this_sequence A085290 A085291 A085292
Sequence in context: A049680 A058021 A077182 this_sequence A095339 A078413 A019083
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KEYWORD
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nonn
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com), Jun 23, 2003
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EXTENSIONS
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More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Jan 31 2005
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