1,2

2 is OK because 5^2 + 2^5 = 25 + 32 = 57 = 3*19 (semiprime).

Sequence in context: A074901 A125990 A080223 this_sequence A004522 A004521 A103694

Adjacent sequences: A114970 A114971 A114972 this_sequence A114974 A114975 A114976

nonn

Zak Seidov (zakseidov(AT)yahoo.com), Feb 22 2006