50693domain: NAppears in sequencesLes Marvin sequence: a(n) = F(n) + (n-1)*F(n-1), F() = Fibonacci numbers.at n=18A007502Fibonacci sequence beginning 1, 19.at n=18A022109Exponents m such that the decimal expansion of 3^m exhibits its first zero from the right later than any previous exponent.at n=22A239008