A213356 Numbers that are not the sum of distinct primes with prime subscripts.
1, 2, 4, 6, 7, 9, 10, 12, 13, 15, 18, 21, 23, 24, 26, 27, 29, 30, 32, 35, 37, 38, 40, 43, 54, 65, 68, 71, 82, 85, 96
Offset: 1
Examples
Prime(Prime(1)) = Prime(2) = 3 and Prime(Prime(2)) = Prime(3) = 5, so 1, 2, and 4 are members, but 3, 5, and 3+5=8 are not.
Links
- R. E. Dressler and S. T. Parker, Primes with a prime subscript, J. ACM 22 (1975) 380-381.
Comments