203776domain: NAppears in sequencesa(n) = 2*a(n-1) + 4*a(n-2), a(0)=1, a(1)=1.at n=11A084057Duplicate of A084057.at n=10A163302Numbers formed by the rightmost decimal digits of n^n that are the same as those n^(n^n), where -1 indicates that n^n <> n^(n^n) (mod 10).at n=26A371078