119574

Appears in sequences

• Theta series of Borcherds' 27-dimensional unimodular lattice T_27.at n=4A002434
• Sum of third powers of two consecutive primes.at n=11A133534
• Triangle T(n,k), read by rows, given by (0, 2, 3, 4, 6, 6, 9, 8, 12, 10, 15, ...) DELTA (1, 0, 1, 0, 1, 0, 1, 0, 1, 0, ...) where DELTA is the operator defined in A084938.at n=30A185285
• Numbers n with property that n and 2n are sums of two distinct positive cubes.at n=25A191345
• a(n) = floor((3^n)/(3*n - 2)).at n=13A191628
• a(n) = sigma_2(n)*sigma_3(n)/sigma(n).at n=19A320917