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.

A212803 Number of Eulerian circuits in the Cartesian product of two directed cycles of lengths n.

Table of values

n a(n)
1 1
2 4
3 108
4 12800
5 6050000
6 11218701312
7 81959473720768
8 2376692369090150400
9 275204089028043534645504
10 127722545775271195902771200000
11 238045190395699755964859156456705024
12 1783083199654005767436422099232872202240000
13 53684915729010675246823790713834564866472376291328

List of values

[1, 4, 108, 12800, 6050000, 11218701312, 81959473720768, 2376692369090150400, 275204089028043534645504, 127722545775271195902771200000, 238045190395699755964859156456705024, 1783083199654005767436422099232872202240000, 53684915729010675246823790713834564866472376291328]

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

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