199988

Appears in sequences

• Numbers k equal to the number of 1's in the decimal digits of all numbers <= k.at n=9A014778
• a(n) = smallest multiple of 4 with sum of digits = n.at n=43A077489
• Number of lower triangles of an n X n 0..6 array with each element differing from all of its horizontal and vertical neighbors by one.at n=5A194996
• Number of lower triangles of a 6 X 6 0..n array with each element differing from all of its horizontal and vertical neighbors by one.at n=5A195002
• Numbers k such that the number of times digit 'm' used for writing the decimal representation between 1 to k is equal to k for at least one value of m in the range m = 1 to 9.at n=9A216400
• Base-ten n containing a digit making its n-th appearance in the list of consecutive positive integers.at n=8A339752