A067840 Factorial expansion of e^2 : exp(2) = Sum_{n >= 0} a(n)/n!.

7, 0, 0, 2, 1, 1, 4, 0, 6, 6, 6, 8, 5, 11, 5, 10, 10, 15, 16, 8, 19, 18, 15, 0, 16, 1, 2, 26, 17, 27, 23, 17, 18, 11, 24, 34, 25, 16, 27, 5, 33, 20, 11, 39, 35, 25, 39, 7, 5, 21, 27, 30, 33, 21, 34, 9, 10, 26, 32, 15, 35, 23, 6, 3, 21, 43, 50, 40, 41, 33, 1, 62, 58, 59, 12, 23, 62, 42

Offset

0,1

Links

Table of n, a(n) for n=0..77.

Formula

a(0) = 7; for n>=1, a(n) = floor(n!*e^2) - n*floor((n-1)!*e^2).

Crossrefs

Cf. A072334, A007514.

Sequence in context: A171917 A198919 A019933 * A132712 A021592 A235140

Adjacent sequences: A067837 A067838 A067839 * A067841 A067842 A067843

Keyword

easy,nonn

Author

Benoit Cloitre, Mar 10 2002

Extensions

Offset changed to 0 by Sean A. Irvine, Jan 09 2024

Status

approved