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Search: id:A069468
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| A069468 |
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Number of ways writing n! as a product of some other numbers which has no digits equal to 1. |
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+0
1
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| 0, 1, 3, 17, 68, 807, 5310, 121536, 2775630, 48782385, 0, 0, 0, 0, 0
(list; graph; listen)
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OFFSET
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1,3
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FORMULA
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a(n)=A067734(n!)=A067734(A000142(n))
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EXAMPLE
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n=4, 4!=24, A067734(24)=17 and the 17 solutions are as follows: {38,46,64,83,226,234,243,262,324,342,423,432,622,2223,2232,2322,3222}. a(n)=0 if n>10 since A068184 and A067185 are finite and full sequences.
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CROSSREFS
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Cf. A067734, A000142, A068183, A068185.
Sequence in context: A061982 A101562 A034566 this_sequence A128948 A049181 A100233
Adjacent sequences: A069465 A069466 A069467 this_sequence A069469 A069470 A069471
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KEYWORD
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base,nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Mar 25 2002
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