484445052035domain: NAppears in sequencesa(n) = 5*7^n.at n=13A193577Expansion of g.f. (1-2*x)/(1-7*x).at n=14A196661Irregular triangle read by rows, arising from Garvan's proof of Watson's generalization of Ramanujan's partition congruences for powers of 7.at n=28A330329