A116358 Numbers that cannot be written as sum of products of two successive primes.

1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 16, 17, 19, 20, 22, 23, 25, 26, 28, 29, 31, 32, 34, 37, 38, 40, 43, 44, 46, 49, 52, 55, 58, 61, 64, 67, 73, 79

Offset: 1

Author

Reinhard Zumkeller, Feb 12 2006

Keywords

• nonn
• fini
• full

Comments

A116357(a(n)) = 0; complement of A116359.