A078845 - cp's OEIS frontend

A078845 Where 7^n occurs in n-almost-primes, starting at a(0)=1.

n	a(n)
0	1
1	4
2	17
3	82
4	385
5	1688
6	7089
7	28893
8	115180
9	450906
10	1740244
11	6640747
12	25115604
13	94312569
14	352110321
15	1308256678
16	4841115048
17	17852264639
18	65636109307
19	240689877440
20	880582139867

[1, 4, 17, 82, 385, 1688, 7089, 28893, 115180, 450906, 1740244, 6640747, 25115604, 94312569, 352110321, 1308256678, 4841115048, 17852264639, 65636109307, 240689877440, 880582139867]

cp's OEIS Frontend

A078845 Where 7^n occurs in n-almost-primes, starting at a(0)=1.

Table of values

List of values