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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.

A320215 Number of multisets of nonempty words with a total of n letters over quinary alphabet such that all letters occur at least once in the multiset.

Table of values

n a(n)
5 501
6 10310
7 129485
8 1285815
9 11117600
10 87804401
11 651039050
12 4610303390
13 31536998095
14 210038354645
15 1369653353001
16 8781196628665
17 55523386000940
18 347061871472795
19 2148545319437735
20 13192142317933416
21 80429793804860995
22 487358723056001905
23 2937204731254087895

List of values

[501, 10310, 129485, 1285815, 11117600, 87804401, 651039050, 4610303390, 31536998095, 210038354645, 1369653353001, 8781196628665, 55523386000940, 347061871472795, 2148545319437735, 13192142317933416, 80429793804860995, 487358723056001905, 2937204731254087895]

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

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