212890624

Appears in sequences

• a(n) is the smallest number m such that the sum of the first m squares ends in n '0's.at n=8A174245
• a(n) = 2^(2*5^(n-1)) mod 10^n.at n=8A216092
• a(n) is the smallest number m such that the m-th triangular number ends in n zeros.at n=8A228191