A153577 Floor of value of n-th derivative of Zeta(x) at x=2.

-1, 1, -7, 24, -121, 720, -5040, 40319, -362880, 3628800, -39916801, 479001600, -6227020801, 87178291199, -1307674368000, 20922789887999, -355687428096000, 6402373705728000, -121645100408832001, 2432902008176640000

Offset

1,3

Links

Vaclav Kotesovec, Table of n, a(n) for n = 1..100

Formula

a(n) ~ (-1)^n * n!. - Vaclav Kotesovec, Mar 05 2019

Mathematica

Table[Floor[Derivative[k][Zeta][2]], {k, 1, 20}]

Crossrefs

Sequence in context: A129797 A188120 A007750 * A009643 A108095 A223007

Adjacent sequences: A153574 A153575 A153576 * A153578 A153579 A153580

Keyword

sign

Author

Vladimir Reshetnikov, Dec 28 2008

Status

approved