1,1
a(1) = 2 + 3 + 5 + 7 = 17, a(2) = 11 + 13 + 17 + 19 + 23 = 83.
Cf. A158527, A048396.
Sequence in context: A001159 A053820 A142059 this_sequence A156968 A156157 A146389
Adjacent sequences: A158525 A158526 A158527 this_sequence A158529 A158530 A158531
nonn
Zak Seidov (zakseidov(AT)yahoo.com), Mar 20 2009
Search completed in 0.002 seconds