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.

A290569 Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of continued fraction 1/(1 - x/(1 - 2^k*x/(1 - 3^k*x/(1 - 4^k*x/(1 - 5^k*x/(1 - ...)))))).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 2
6 1
7 1
8 3
9 5
10 1
11 1
12 5
13 15
14 14
15 1
16 1
17 9
18 61
19 105
20 42
21 1
22 1
23 17
24 297
25 1385
26 945
27 132
28 1
29 1
30 33
31 1585
32 24273
33 50521
34 10395
35 429
36 1
37 1
38 65
39 8865
40 485729
41 3976209
42 2702765
43 135135
44 1430
45 1
46 1
47 129
48 50881
49 10401345
50 372281761
51 1145032281
52 199360981
53 2027025
54 4862

List of values

[1, 1, 1, 1, 1, 2, 1, 1, 3, 5, 1, 1, 5, 15, 14, 1, 1, 9, 61, 105, 42, 1, 1, 17, 297, 1385, 945, 132, 1, 1, 33, 1585, 24273, 50521, 10395, 429, 1, 1, 65, 8865, 485729, 3976209, 2702765, 135135, 1430, 1, 1, 129, 50881, 10401345, 372281761, 1145032281, 199360981, 2027025, 4862]

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

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