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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.

A225480 a(n) = B2(n) * C(n) where B2(n) are generalized Bernoulli numbers and C(n) the Clausen numbers.

Table of values

n a(n)
0 1
1 0
2 -2
3 0
4 14
5 0
6 -62
7 0
8 254
9 0
10 -5110
11 0
12 2828954
13 0
14 -114674
15 0
16 237036478
17 0
18 -11499383114
19 0
20 183092554714
21 0
22 -3584085584926
23 0
24 3965530936622474
25 0
26 -573989008898786
27 0
28 6375197353574922166
29 0
30 -9251189109760413581110
31 0
32 33111281730973040956798
33 0

List of values

[1, 0, -2, 0, 14, 0, -62, 0, 254, 0, -5110, 0, 2828954, 0, -114674, 0, 237036478, 0, -11499383114, 0, 183092554714, 0, -3584085584926, 0, 3965530936622474, 0, -573989008898786, 0, 6375197353574922166, 0, -9251189109760413581110, 0, 33111281730973040956798, 0]

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

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