A239623 - cp's OEIS frontend

A239623 Conjecturally, the largest k such that prime(n)^2 is the largest squared prime divisor of binomial(2k,k).

n	a(n)
0	4
1	786
2	785
3	2080
4	902
5	2034
6	2079
7	1086
8	2081
9	2090
10	1652
11	2562
12	3905
13	8185
14	4987
15	3507
16	5562
17	2713
18	3584
19	4191
20	8285
21	9319
22	12237
23	12117
24	12248
25	9311
26	8180
27	8399
28	9308
29	20123
30	11977
31	11683
32	12261
33	14365
34	15403
35	20114
36	16867
37	19938
38	19559
39	20316
40	24706

[4, 786, 785, 2080, 902, 2034, 2079, 1086, 2081, 2090, 1652, 2562, 3905, 8185, 4987, 3507, 5562, 2713, 3584, 4191, 8285, 9319, 12237, 12117, 12248, 9311, 8180, 8399, 9308, 20123, 11977, 11683, 12261, 14365, 15403, 20114, 16867, 19938, 19559, 20316, 24706]

cp's OEIS Frontend

A239623 Conjecturally, the largest k such that prime(n)^2 is the largest squared prime divisor of binomial(2k,k).

Table of values

List of values