A071261 - cp's OEIS frontend

A071261 Smallest k such that |p(k)-c(k)| is an n-digit number where p(k) is the k-th prime and c(k) is the k-th composite number.

n	a(n)
1	1
2	10
3	37
4	206
5	1401
6	10626
7	85316
8	712597
9	6117420
10	53593619
11	476889480
12	4295913223
13	39084524707
14	358521889961
15	3311439169717
16	30765562102926
17	287282165065268
18	2694418859703791
19	25368958219747617

[1, 10, 37, 206, 1401, 10626, 85316, 712597, 6117420, 53593619, 476889480, 4295913223, 39084524707, 358521889961, 3311439169717, 30765562102926, 287282165065268, 2694418859703791, 25368958219747617]

cp's OEIS Frontend

A071261 Smallest k such that |p(k)-c(k)| is an n-digit number where p(k) is the k-th prime and c(k) is the k-th composite number.

Table of values

List of values