A040975 Primes p such that x^5 = 15 has no solution mod p.

11, 31, 41, 61, 71, 101, 131, 151, 181, 191, 251, 271, 281, 331, 401, 421, 431, 461, 491, 521, 571, 601, 631, 641, 661, 691, 701, 751, 821, 881, 971, 991, 1021, 1051, 1061, 1171, 1181, 1231, 1291, 1301, 1321