A069468 Number of ways writing n! as a product of some other numbers which has no digits equal to 1.

0, 1, 3, 17, 68, 807, 5310, 121536, 2775630, 48782385, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0

Offset: 1

Author

Labos Elemer, Mar 25 2002

Keywords

• base
• nonn

Examples

			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}.
		

Crossrefs

Cf. A067734, A000142, A068183, A068185.

Formula

a(n) = A067734(n!) = A067734(A000142(n)).

a(n) = 0 if n>10 since A068184 and A067185 are complete sequences.

Extensions

More terms from Max Alekseyev, Sep 19 2009