5500000

Appears in sequences

• a(n) = A069537(n)/2.at n=27A088404
• Average of positive multiples of 3 with n decimal digits, rounded down.at n=6A110431
• a(n) = n^6*(n + 1)/2.at n=10A168526
• Numbers such that the path described in Comments visits all digits once and ends in the position immediately after the last digit.at n=20A285696
• Numbers k such that sum of digits (k) and sum of digits (k^2) is 10.at n=35A325451