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.

A081370 Numbers k such that binomial(k^2, k) reduced mod k^2 is 0.

Table of values

n a(n)
1 1
2 30
3 105
4 120
5 132
6 231
7 252
8 380
9 495
10 520
11 595
12 616
13 630
14 680
15 756
16 858
17 870
18 924
19 1040
20 1155
21 1173
22 1365
23 1428
24 1463
25 1547
26 1610
27 1722
28 1768
29 1820
30 1953
31 1976
32 1995
33 2002
34 2016
35 2080
36 2093
37 2170
38 2184
39 2277
40 2310
41 2508
42 2520
43 2530
44 2552
45 2618
46 2622

List of values

[1, 30, 105, 120, 132, 231, 252, 380, 495, 520, 595, 616, 630, 680, 756, 858, 870, 924, 1040, 1155, 1173, 1365, 1428, 1463, 1547, 1610, 1722, 1768, 1820, 1953, 1976, 1995, 2002, 2016, 2080, 2093, 2170, 2184, 2277, 2310, 2508, 2520, 2530, 2552, 2618, 2622]