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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.

A212312 4 times coefficients of the twisted K3 elliptic genus attached to the conjugacy class 7A or 7B (7AB) in the Mathieu group M_24.

Table of values

n a(n)
1 -1
2 213
3 4767
4 52682
5 627573
6 4682412
7 53313931
8 341278995
9 3421674678
10 24687536097
11 214728131688
12 1291490582217
13 14602976386348
14 80718169058895
15 691486905294549
16 5191979939244635
17 44020035323951778
18 245857487857551822
19 2489942402834854279
20 13633673140696254618

List of values

[-1, 213, 4767, 52682, 627573, 4682412, 53313931, 341278995, 3421674678, 24687536097, 214728131688, 1291490582217, 14602976386348, 80718169058895, 691486905294549, 5191979939244635, 44020035323951778, 245857487857551822, 2489942402834854279, 13633673140696254618]

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

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