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.

A131077 Antidiagonal sums of triangular array T: T(j,1) = 1 for ((j-1) mod 8) < 4, else 0; T(j,k) = T(j-1,k-1) + T(j,k-1) for 2 <= k <= j.

Table of values

n a(n)
1 1
2 1
3 3
4 3
5 6
6 5
7 11
8 8
9 20
10 14
11 35
12 24
13 59
14 41
15 100
16 77
17 178
18 162
19 341
20 364
21 705
22 837
23 1542
24 1915
25 3458
26 4282
27 7741
28 9280
29 17021
30 19461
31 36482
32 39559
33 76042
34 78218
35 154261
36 151184
37 305445
38 287509
39 592954
40 542223
41 1135178
42 1023210
43 2158389
44 1949312
45 4107701

List of values

[1, 1, 3, 3, 6, 5, 11, 8, 20, 14, 35, 24, 59, 41, 100, 77, 178, 162, 341, 364, 705, 837, 1542, 1915, 3458, 4282, 7741, 9280, 17021, 19461, 36482, 39559, 76042, 78218, 154261, 151184, 305445, 287509, 592954, 542223, 1135178, 1023210, 2158389, 1949312, 4107701]