A227378 Smallest number with n = sum of distinct digits in decimal representation, cf. A217928.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 19, 29, 39, 49, 59, 69, 79, 89, 189, 289, 389, 489, 589, 689, 789, 1789, 2789, 3789, 4789, 5789, 6789, 16789, 26789, 36789, 46789, 56789, 156789, 256789, 356789, 456789, 1456789, 2456789, 3456789, 13456789, 23456789, 123456789

Offset: 0

Author

Reinhard Zumkeller, Jul 09 2013

Keywords

• nonn
• base
• fini
• full

Comments

A217928(a(n)) = A007953(a(n)) = n and A217928(m) < n for m < a(n).

Programs

Haskell

import Data.List (elemIndex); import Data.Maybe (fromJust)
a227378 = fromJust . (`elemIndex` a217928_list)