A140105 Trailing zeros removed from n! in binary.

1, 1, 1, 11, 11, 1111, 101101, 100111011, 100111011, 101100010011, 11011101011111, 100110000100010101, 1110010001100111111

Offset

0,4

Links

Robert Israel, Table of n, a(n) for n = 0..192

Formula

a(n) = A007088(A049606(n)). - Robert Israel, May 01 2019

Example

a(3)=11 because 3! in binary is 110, which is 11 when the zero is removed.

Maple

seq(convert(n!/2^padic:-ordp(n!, 2), binary), n=0..30); # Robert Israel, May 01 2019

Crossrefs

Cf. A007088, A049606.

Sequence in context: A282122 A281419 A280838 * A265715 A366416 A178496

Adjacent sequences: A140102 A140103 A140104 * A140106 A140107 A140108

Keyword

nonn

Author

Ben Branman, Jun 03 2008

Status

approved