a(n) = 3rd elementary symmetric function of the first n+2 positive integers congruent to 1 mod 4.

A024379

a(n) = 3rd elementary symmetric function of the first n+2 positive integers congruent to 1 mod 4.

Terms

    a(0) =45a(1) =812a(2) =5130a(3) =20460a(4) =62335a(5) =158760a(6) =355572a(7) =722760a(8) =1361745a(9) =2413620a(10) =4068350a(11) =6574932a(12) =10252515a(13) =15502480a(14) =22821480a(15) =32815440a(16) =46214517a(17) =63889020a(18) =86866290a(19) =116348540a(20) =153731655a(21) =200624952a(22) =258871900a(23) =330571800a(24) =418102425a(25) =524143620

External references