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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.

A194722 Number of n-ary words beginning with the first character of the alphabet, that can be built by inserting ten doublets into the initially empty word.

Table of values

n a(n)
0 0
1 1
2 92378
3 19319845
4 560198962
5 6507351113
6 44731364266
7 218878998733
8 844131474530
9 2730108129937
10 7711583225338
11 19564269083381
12 45486599105938
13 98378219490265
14 200201768681162
15 386776488742813
16 714420272913346
17 1268930908616993
18 2177477525153050

List of values

[0, 1, 92378, 19319845, 560198962, 6507351113, 44731364266, 218878998733, 844131474530, 2730108129937, 7711583225338, 19564269083381, 45486599105938, 98378219490265, 200201768681162, 386776488742813, 714420272913346, 1268930908616993, 2177477525153050]

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

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