A243990 Primes which do not divide the numbers of the form A242720(n)-3.

2, 41, 61, 103, 113, 157, 227, 263, 283, 337, 349, 373, 383, 389, 431, 433, 449, 457, 557, 563, 577, 601, 631, 641, 677, 683, 691, 733, 751, 857, 881, 883, 911, 929, 953, 967, 983, 991, 1009, 1039, 1093, 1097, 1151, 1181, 1279, 1303, 1373, 1427, 1451, 1481

Offset: 1

Author

Vladimir Shevelev, Jun 17 2014

Keywords

• nonn

Comments

If a prime p=prime(k) does not divide A242720(i)-3 for i=2,3,...,k, then it is in the sequence.

Crossrefs

Cf. A242720, A242719, A243960.

Extensions

More terms from Peter J. C. Moses, Jun 18 2014