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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.

A032088 Number of reversible strings with n beads of 5 colors. If more than 1 bead, not palindromic.

Table of values

n a(n)
1 5
2 10
3 50
4 300
5 1500
6 7750
7 38750
8 195000
9 975000
10 4881250
11 24406250
12 122062500
13 610312500
14 3051718750
15 15258593750
16 76293750000
17 381468750000
18 1907347656250
19 9536738281250
20 47683710937500

List of values

[5, 10, 50, 300, 1500, 7750, 38750, 195000, 975000, 4881250, 24406250, 122062500, 610312500, 3051718750, 15258593750, 76293750000, 381468750000, 1907347656250, 9536738281250, 47683710937500]

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

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