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.

A355585 T(j,k) are the numerators s in the representation R = s/t + (2*sqrt(3)/Pi)*u/v of the resistance between two nodes separated by the distance (j,k) in an infinite triangular lattice of one-ohm resistors, where T(j,k), j >= 0, 0 <= k <= floor(j/2) is an irregular triangle read by rows.

Table of values

n a(n)
0 0
1 1
2 8
3 -2
4 27
5 -5
6 928
7 -70
8 16
9 11249
10 -2671
11 123
12 46872
13 -34354
14 5992
15 -438
16 1792225
17 -445535
18 28075
19 -10303
20 23152256
21 -5824226
22 1168304
23 -178754
24 38336
25 100685835
26 -25547957
27 5343755
28 -885717
29 101355
30 3970817992
31 -338056246
32 72962904
33 -12914726
34 1825464
35 -386166

List of values

[0, 1, 8, -2, 27, -5, 928, -70, 16, 11249, -2671, 123, 46872, -34354, 5992, -438, 1792225, -445535, 28075, -10303, 23152256, -5824226, 1168304, -178754, 38336, 100685835, -25547957, 5343755, -885717, 101355, 3970817992, -338056246, 72962904, -12914726, 1825464, -386166]