A362778 - cp's OEIS frontend

A362778 Triangular array read by rows: T(n,k) is the least prime factor of n!*k + 1, n >= 1, 1 <= k <= n.

n	a(n)
1	2
2	3
3	5
4	7
5	13
6	19
7	5
8	7
9	73
10	97
11	11
12	241
13	19
14	13
15	601
16	7
17	11
18	2161
19	43
20	13
21	29
22	71
23	17
24	15121
25	20161
26	11
27	30241
28	35281
29	61
30	11
31	73
32	161281
33	449
34	241921
35	282241
36	47
37	19
38	293
39	1088641
40	1451521
41	23
42	2177281
43	13
44	2903041
45	17
46	11
47	13
48	10886401
49	233
50	18144001
51	17
52	101
53	29030401
54	32659201
55	43

[2, 3, 5, 7, 13, 19, 5, 7, 73, 97, 11, 241, 19, 13, 601, 7, 11, 2161, 43, 13, 29, 71, 17, 15121, 20161, 11, 30241, 35281, 61, 11, 73, 161281, 449, 241921, 282241, 47, 19, 293, 1088641, 1451521, 23, 2177281, 13, 2903041, 17, 11, 13, 10886401, 233, 18144001, 17, 101, 29030401, 32659201, 43]

cp's OEIS Frontend

A362778 Triangular array read by rows: T(n,k) is the least prime factor of n!*k + 1, n >= 1, 1 <= k <= n.

Table of values

List of values