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.

A254131 Rectangular array A read by upward antidiagonals in which the entry in row n and column k is defined by A(n,k) = A254067(n,k) - A257499(n,k), n,k >= 1.

Table of values

n a(n)
1 0
2 1
3 -1
4 2
5 2
6 -2
7 41
8 13
9 3
10 -3
11 30
12 90
13 24
14 4
15 -4
16 501
17 209
18 139
19 35
20 5
21 -5
22 322
23 1102
24 388
25 188
26 46
27 6
28 -6
29 5041
30 2253
31 1703
32 567
33 237
34 57
35 7
36 -7
37 3110
38 11090
39 4184
40 2304
41 746
42 286
43 68
44 8
45 -8
46 47501
47 21769
48 17139
49 6115
50 2905
51 925
52 335
53 79
54 9
55 -9

List of values

[0, 1, -1, 2, 2, -2, 41, 13, 3, -3, 30, 90, 24, 4, -4, 501, 209, 139, 35, 5, -5, 322, 1102, 388, 188, 46, 6, -6, 5041, 2253, 1703, 567, 237, 57, 7, -7, 3110, 11090, 4184, 2304, 746, 286, 68, 8, -8, 47501, 21769, 17139, 6115, 2905, 925, 335, 79, 9, -9]