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.

A381603 Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A120973.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 1
5 0
6 1
7 2
8 6
9 0
10 1
11 3
12 13
13 60
14 0
15 1
16 4
17 21
18 132
19 776
20 0
21 1
22 5
23 30
24 217
25 1708
26 11802
27 0
28 1
29 6
30 40
31 316
32 2814
33 25876
34 201465
35 0
36 1
37 7
38 51
39 430
40 4113
41 42510
42 439446
43 3759100
44 0
45 1
46 8
47 63
48 560
49 5625
50 62016
51 718647
52 8155874
53 75404151
54 0
55 1
56 9
57 76
58 707
59 7371
60 84731
61 1044228
62 13270944
63 162762498
64 1608036861
65 0

List of values

[1, 1, 0, 1, 1, 0, 1, 2, 6, 0, 1, 3, 13, 60, 0, 1, 4, 21, 132, 776, 0, 1, 5, 30, 217, 1708, 11802, 0, 1, 6, 40, 316, 2814, 25876, 201465, 0, 1, 7, 51, 430, 4113, 42510, 439446, 3759100, 0, 1, 8, 63, 560, 5625, 62016, 718647, 8155874, 75404151, 0, 1, 9, 76, 707, 7371, 84731, 1044228, 13270944, 162762498, 1608036861, 0]