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.

A373845 Triangle read by rows: T(n,k) = arithmetic derivative of (1 + A002110(n) + A002110(k)), 1 <= k <= n, where A002110(n) is the n-th primorial number.

Table of values

n a(n)
1 1
2 6
3 1
4 14
5 1
6 1
7 74
8 38
9 1
10 1
11 1551
12 338
13 1
14 1
15 1
16 21084
17 8631
18 1330
19 1
20 1
21 3550
22 172655
23 72938
24 1970
25 3410
26 1
27 1
28 5822
29 3233234
30 4157356
31 421750
32 228491
33 10190
34 13610
35 537398
36 289610
37 297753138
38 32805527
39 5188250
40 8698439
41 761710
42 1
43 18344100
44 1
45 6954431
46 2156564414
47 929540471
48 68769335
49 335525472
50 4283242
51 21900155
52 348965439
53 109820278
54 185002
55 32593310

List of values

[1, 6, 1, 14, 1, 1, 74, 38, 1, 1, 1551, 338, 1, 1, 1, 21084, 8631, 1330, 1, 1, 3550, 172655, 72938, 1970, 3410, 1, 1, 5822, 3233234, 4157356, 421750, 228491, 10190, 13610, 537398, 289610, 297753138, 32805527, 5188250, 8698439, 761710, 1, 18344100, 1, 6954431, 2156564414, 929540471, 68769335, 335525472, 4283242, 21900155, 348965439, 109820278, 185002, 32593310]