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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.

A152612 Number of isomorphism classes of n-fold coverings of a connected graph with Betti number 3.

Table of values

n a(n)
1 1
2 8
3 49
4 681
5 14721
6 524137
7 25471105
8 1628116890
9 131789656610
10 13174980291658
11 1593894406662866
12 229496526010111571
13 38782290669508033003
14 7600987633299112125995
15 1710169549495739472301076
16 437793904386312274903991653
17 126520458075485848061740557461

List of values

[1, 8, 49, 681, 14721, 524137, 25471105, 1628116890, 131789656610, 13174980291658, 1593894406662866, 229496526010111571, 38782290669508033003, 7600987633299112125995, 1710169549495739472301076, 437793904386312274903991653, 126520458075485848061740557461]

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

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