A101231 a(n) = n-th prime of Erdős-Selfridge classification n-.
2, 29, 67, 179, 941, 4079, 20389, 65267, 224563, 978863, 6448979, 47247763, 309550999, 2150787839, 13925010299
Offset: 1
Examples
a(1) = 2 because 2 is the first element of A005109. a(2) = 29 because 29 is the 2nd element of A005110. a(3) = 67 because 67 is the 3rd element of A005111. a(4) = 179 because 179 is the 4th element of A005112.
References
- R. K. Guy, Unsolved Problems in Number Theory, A18.
Crossrefs
Extensions
More terms from R. J. Mathar, May 02 2007
Comments