A181325 Primes that can be written as the sum of a Fibonacci number (A000045) and a triangular number (A000217).
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 47, 53, 61, 67, 71, 79, 83, 89, 107, 113, 137, 139, 149, 157, 167, 173, 179, 191, 193, 199, 211, 223, 233, 239, 269, 277, 281, 311, 313, 331, 353, 359, 379, 383, 389, 397, 409, 419, 433, 443, 461, 467, 499, 509
Offset: 0
Keywords
Examples
29 is in the sequence since 29 is prime and 29 = 21 + 8 = T(6) + F(7); 43 is not in the sequence, despite being prime, since there exist no m and n such that 43 = T(m) + F(n).