A158849 a(10n+m) is the integer with n+m concatenations of the digit m in base 10, 0<=m<=9.

1, 22, 333, 4444, 55555, 666666, 7777777, 88888888, 999999999, 0, 11, 222, 3333, 44444, 555555, 6666666, 77777777, 888888888, 9999999999, 0, 111, 2222, 33333, 444444, 5555555, 66666666, 777777777, 8888888888, 99999999999, 0, 1111

Offset

1,2

Links

Table of n, a(n) for n=1..31.

Lisa Carbone and Pranav Shankar, Kac-Moody Fibonacci sequences, arXiv:2601.00958 [math.NT], 2026. See p. 13, Table 7.

Mathematica

Rest@ Flatten@ Table[FromDigits[ConstantArray[m, n + m]], {n, 0, 3}, {m, 0, 9}] (* Michael De Vlieger, Jan 09 2026 *)

Crossrefs

A000461, A048376.

Sequence in context: A395709 A025936 A369132 * A048376 A053422 A000461

Adjacent sequences: A158846 A158847 A158848 * A158850 A158851 A158852

Keyword

nonn,base

Author

Paul Curtz, Mar 28 2009

Extensions

Edited by R. J. Mathar, Apr 04 2009

Status

approved