1,3

A137581(a(n)) = 0;

conjecture: the sequence is finite.

Index entries for sequences related to factorial numbers.

A000142(a(10)) = 11! = 399168*10^2;

A000142(a(11)) = 14! = 871782912*10^2;

A000142(a(12)) = 31! = 822283865417792281772556288*10^7.

Cf. A027869, A027868.

Sequence in context: A134697 A032975 A119356 this_sequence A116965 A123054 A093703

Adjacent sequences: A137579 A137580 A137581 this_sequence A137583 A137584 A137585

nonn,base

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jan 27 2008