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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.

A128249 T(n,k) is the number of unlabeled acyclic single-source automata with n transient states on a (k+1)-letter input alphabet.

Table of values

n a(n)
1 1
2 3
3 1
4 16
5 7
6 1
7 127
8 139
9 15
10 1
11 1363
12 5711
13 1000
14 31
15 1
16 18628
17 408354
18 189035
19 6631
20 63
21 1
22 311250
23 45605881
24 79278446
25 5470431
26 42196
27 127
28 1
29 6173791
30 7390305396
31 63263422646
32 12703473581
33 147606627
34 262459
35 255
36 1
37 142190703
38 1647470410551

List of values

[1, 3, 1, 16, 7, 1, 127, 139, 15, 1, 1363, 5711, 1000, 31, 1, 18628, 408354, 189035, 6631, 63, 1, 311250, 45605881, 79278446, 5470431, 42196, 127, 1, 6173791, 7390305396, 63263422646, 12703473581, 147606627, 262459, 255, 1, 142190703, 1647470410551]

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

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