A243361 a(n) = arrange digits of concatenation of divisors of n (A037278, A176558) in increasing order in base 10 (zero digits are omitted).

1, 12, 13, 124, 15, 1236, 17, 1248, 139, 1125, 111, 1122346, 113, 11247, 11355, 112468, 117, 1123689, 119, 112245, 11237, 111222, 123, 1122234468, 1255, 112236, 12379, 11224478, 129, 111233556, 113, 11223468, 111333, 112347, 13557, 111223346689, 137

Offset: 1

Author

Jaroslav Krizek, Jun 04 2014

Keywords

• nonn
• base

Comments

See A243362 = sequence of numbers n such that a(n) = 123456789: 54023, 54203, 500407, 23456789… First prime in this sequence is 23456789.

Examples

			For n = 20; divisors of 20: 1, 2, 4, 5, 10, 20; a(20) = 112245.
		

Crossrefs

Cf. A037278, A176558, A243360, A243362, A243363, A243364.

Programs

Magma

A243361:=func; [A243361(n): n in [1..100]];