2421980406domain: NAppears in sequencesa(n) = 12*a(n-1) - a(n-2).at n=9A023038Numerators of continued fraction convergents to sqrt(35).at n=17A041058a(n)*a(n+3) - a(n+1)*a(n+2) = 5, given a(0)=a(1)=1, a(2)=6.at n=18A080875256*n^9 - 576*n^7 + 432*n^5 - 120*n^3 + 9*n.at n=6A243135