125100domain: NAppears in sequencesDenominators of continued fraction convergents to sqrt(626).at n=3A042201a(n) = n*(n-1)*(2*n^2 + 1)/6.at n=25A071245Expansion of Product_{k>=0} ((1+x^(2*k+1))/(1-x^(2*k+1)))^3.at n=17A261647