70375domain: NAppears in sequencesCentered octahedral numbers (crystal ball sequence for cubic lattice).at n=37A001845Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 71 ones.at n=4A031839Numbers k such that (5*3^k + 7)/2 is prime.at n=14A059621a(n) = (9*n^3 + 5*n)/2.at n=24A230018