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.

A355793 Square table, read by antidiagonals: the g.f. for row n is given recursively by (3*n-1)*x*R(n,x) = 1 + (3*n-4)*x - 1/R(n-1,x) for n >= 1 with the initial value R(0,x) = Sum_{k >= 0} A112936(k+1)*x^k.

Table of values

n a(n)
0 1
1 1
2 3
3 1
4 3
5 15
6 1
7 3
8 24
9 111
10 1
11 3
12 33
13 282
14 1131
15 1
16 3
17 42
18 507
19 4236
20 14943
21 1
22 3
23 51
24 786
25 9609
26 76548
27 243915
28 1
29 3
30 60
31 1119
32 17736
33 212835
34 1608864
35 4742391
36 1
37 3
38 69
39 1506
40 29103
41 459768
42 5350785
43 38488152
44 106912131
45 1
46 3
47 78
48 1947
49 44196
50 859143
51 13333488

List of values

[1, 1, 3, 1, 3, 15, 1, 3, 24, 111, 1, 3, 33, 282, 1131, 1, 3, 42, 507, 4236, 14943, 1, 3, 51, 786, 9609, 76548, 243915, 1, 3, 60, 1119, 17736, 212835, 1608864, 4742391, 1, 3, 69, 1506, 29103, 459768, 5350785, 38488152, 106912131, 1, 3, 78, 1947, 44196, 859143, 13333488]