Number of triples (a,b,c) with 0 < a < b < c < p and a + b + c == 0 mod p, where p = prime(n).

Terms

a(0) =0a(1) =0a(2) =0a(3) =2a(4) =10a(5) =16a(6) =32a(7) =42a(8) =66a(9) =112a(10) =130a(11) =192a(12) =240a(13) =266a(14) =322a(15) =416a(16) =522a(17) =560a(18) =682a(19) =770a(20) =816a(21) =962a(22) =1066a(23) =1232a(24) =1472a(25) =1600a(26) =1666a(27) =1802a(28) =1872a(29) =2016