651009141001domain: NAppears in sequencesDenominators of continued fraction convergents to sqrt(224).at n=17A041419Denominators of continued fraction convergents to sqrt(896).at n=17A042733Chebyshev polynomials of the second kind, U(n,x), evaluated at x=15.at n=9A097313256*n^8 - 448*n^6 + 240*n^4 - 40*n^2 + 1.at n=15A242853