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.

A270669 E.g.f.: Product_{k>=1} (1 + sinh(k*x^k)).

Table of values

n a(n)
0 1
1 1
2 4
3 31
4 168
5 1841
6 19320
7 226885
8 2655408
9 47569681
10 743996880
11 12582916061
12 245804712120
13 4831304993113
14 109782586920552
15 2669560767444901
16 61579705719702240
17 1566459883903878305
18 44585240861695115808
19 1212424119941953292461
20 37517727808419084095400

List of values

[1, 1, 4, 31, 168, 1841, 19320, 226885, 2655408, 47569681, 743996880, 12582916061, 245804712120, 4831304993113, 109782586920552, 2669560767444901, 61579705719702240, 1566459883903878305, 44585240861695115808, 1212424119941953292461, 37517727808419084095400]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.