16507969domain: NAppears in sequencesNumbers k that divide 10^k + 7^k.at n=11A045606Squares of tribonacci numbers A000213.at n=15A141583Number of n X 4 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically.at n=11A208035