33622domain: NAppears in sequencesa(0) = 1, a(n) = 20*n^2 + 2 for n>0.at n=41A010010Numbers n such that 51*2^n-1 is prime.at n=25A050551Record-setting differences between adjacent elements of the Mian-Chowla sequence variant A051788.at n=37A080223