A046273 - cp's OEIS frontend

A046273 Largest prime substring in 7^n (0 if none).

n	a(n)
0	0
1	7
2	0
3	43
4	401
5	7
6	7649
7	823
8	4801
9	3607
10	82475249
11	7326743
12	41287201
13	89
14	23072849
15	7561
16	232930569601
17	2630513987207
18	8413597910449
19	398895185373143
20	297612001
21	558545864083
22	2988049
23	3400809163

[0, 7, 0, 43, 401, 7, 7649, 823, 4801, 3607, 82475249, 7326743, 41287201, 89, 23072849, 7561, 232930569601, 2630513987207, 8413597910449, 398895185373143, 297612001, 558545864083, 2988049, 3400809163]

cp's OEIS Frontend

A046273 Largest prime substring in 7^n (0 if none).

Table of values

List of values