1,1

a(3)=0 since no factorial can contain just three zeros.

Table of n, a(n) for n=1..10.

a(2)=5040, so 5040 is the smallest factorial containing exactly two 0's.

Cf. A072417.

Sequence in context: A223754 A174686 A140907 * A246193 A246613 A031145

Adjacent sequences: A072416 A072417 A072418 * A072420 A072421 A072422

base,nonn

Shyam Sunder Gupta, Jul 31 2002

approved