149999

Appears in sequences

• a(n) = smallest k such that 2k has digit sum = n.at n=45A077491
• Numbers k such that (38*10^k + 691)/9 is prime.at n=20A290476
• Lexicographically earliest sequence of distinct positive terms such that the rightmost digit of a(n) concatenated with the leftmost digit of a(n+1) form an integer that is the sum of the digits of a(n) and a(n+1).at n=23A347353