A254323 - OEIS

A254323

Remove in decimal representation of A254143(n) all repeated digits.

1, 4, 7, 16, 28, 34, 37, 49, 67, 136, 148, 238, 259, 268, 34, 37, 367, 469, 67, 156, 1258, 136, 1348, 1369, 1468, 278, 238, 2359, 2479, 2569, 268, 34, 37, 367, 367, 489, 469, 67, 1356, 1458, 12358, 12469, 12478, 136, 1348, 13468, 13579, 1468, 2378, 2579

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

a(n) <= 123456789 for all n, and a(n) < 123456789 for n < 396;

a(396) = 123456789 = A050289(1);

a(n) = A137564(A254143(n)) = A004086(A227362(A254143(n))).

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

PROG

(Haskell)

a254323 = a137564 . a254143