A096124 a(n) is the exponent of 5 in x = 2^m*5^n, where x = b(n)-b(n-1) and b(n) and b(n-1) are consecutive terms in A050649.

1, 4, 11, 27, 72

Offset

2,2

Links

Table of n, a(n) for n=2..6.

Example

a(3) = 4: b(3)-b(2) = 2512-12 = 2500; 2500 = 2^2*5^4, hence a(3)=4.

Crossrefs

Cf. A050649.

Sequence in context: A014151 A176759 A266009 * A269076 A282641 A031127

Adjacent sequences: A096121 A096122 A096123 * A096125 A096126 A096127

Keyword

nonn

Author

Ray G. Opao, Jul 23 2004

Status

approved