714000domain: NAppears in sequencesNumbers k that, when expressed in base 4 and then interpreted in base 7, give a multiple of k.at n=12A062922Convolution of natural numbers (A000027) with tetradecagonal numbers (A051866).at n=34A220212O.g.f. A(x) satisfies: [x^n] exp( n^5*x - n*A(x) ) = 0 for n >= 1.at n=2A319944