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.

A254312 Rectangular array A read by upward antidiagonals in which the entry in row n and column k is defined by A(n,k) = (2^a(n)*(6*k - (3 - (-1)^a(n))*(1 - (-1)^n)/2) - 2^n + 4)/6, n,k >= 1, where {a(n)} is the Beatty sequence A117630 defined by a(n) = floor(n*log(3)/log(3/2)).

Table of values

n a(n)
1 3
2 32
3 7
4 170
5 64
6 11
7 1022
8 426
9 96
10 15
11 2726
12 2046
13 682
14 128
15 19
16 65526
17 10918
18 3070
19 938
20 160
21 23
22 174742
23 131062
24 19110
25 4094
26 1194
27 192
28 27
29 2097110
30 436886
31 196598
32 27302
33 5118
34 1450
35 224
36 31
37 11184726
38 4194262
39 699030
40 262134
41 35494
42 6142
43 1706
44 256
45 35

List of values

[3, 32, 7, 170, 64, 11, 1022, 426, 96, 15, 2726, 2046, 682, 128, 19, 65526, 10918, 3070, 938, 160, 23, 174742, 131062, 19110, 4094, 1194, 192, 27, 2097110, 436886, 196598, 27302, 5118, 1450, 224, 31, 11184726, 4194262, 699030, 262134, 35494, 6142, 1706, 256, 35]