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A071273
Concatenation of R(n) (A004086) and n, omitting leading 0's.
4
11, 22, 33, 44, 55, 66, 77, 88, 99, 110, 1111, 2112, 3113, 4114, 5115, 6116, 7117, 8118, 9119, 220, 1221, 2222, 3223, 4224, 5225, 6226, 7227, 8228, 9229, 330, 1331, 2332, 3333, 4334, 5335, 6336
OFFSET
1,1
EXAMPLE
a(12) = 2112, a(1235) = 53211235
MATHEMATICA
Table[10^IntegerLength[n] IntegerReverse[n]+n, {n, 40}] (* Harvey P. Dale, Mar 14 2023 *)
CROSSREFS
Cf. A071274.
Sequence in context: A136613 A352535 A113585 * A226467 A244394 A299792
KEYWORD
nonn,base
AUTHOR
Amarnath Murthy, Jun 07 2002
STATUS
approved