109090909

Appears in sequences

• a(n) = Smallest nontrivial number k > 9 such that |first (leftmost) decimal digit of k - second digit + third digit - fourth digit ...| = n.at n=37A060982
• Smallest number m such that first digit - second digit + third digit - fourth digit ... (of m) = n.at n=37A061479
• a(n) = Smallest nontrivial number k > 9 such that first (leftmost) digit - second digit + third digit - fourth digit ... of k = n.at n=37A061882
• Integers n such that n, 2n, 3n ... 10n contain almost equally many copies of each base 10 digit.at n=16A267795