cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A111067 Number of odd primes p < 10^n such that p+2 = product of 2 primes (no twin Chen primes).

Table of values

n a(n)
1 1
2 11
3 79
4 427
5 3009
6 21779
7 166649
8 1322266
9 10752066
10 89305602
11 754868608
12 6472917998

List of values

[1, 11, 79, 427, 3009, 21779, 166649, 1322266, 10752066, 89305602, 754868608, 6472917998]