cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A089626 a(n) = 1/h(n) where {h(n)} is the Hankel transform of {t(n)}; t(n) is defined by the expansion of tan(x)= Sum_n>0, t(n)*x^(2*n-1); |x|

Table of values

n a(n)
1 1
2 45
3 4465125
4 6272287562165625
5 438120013555654794702228515625
6 3943988517696329309474874414036059896739501953125
7 9860368980530253649041813027973243717504383071655695011832599639892578125

List of values

[1, 45, 4465125, 6272287562165625, 438120013555654794702228515625, 3943988517696329309474874414036059896739501953125, 9860368980530253649041813027973243717504383071655695011832599639892578125]