A160930 a(n)= n + reversal(n-1) + reversal(n+1)

3, 6, 9, 12, 15, 18, 21, 24, 18, 30, 33, 54, 75, 96, 117, 138, 159, 180, 102, 123, 45, 66, 87, 108, 129, 150, 171, 192, 114, 135, 57, 78, 99, 120, 141, 162, 183, 204, 126, 147, 69, 90, 111, 132, 153, 174, 195, 216, 138, 159, 81, 102, 123, 144, 165, 186, 207, 228, 150

Offset

1,1

Comments

a(8)=8+R(7)+R(9)=8+7+9=24; a(15)=15+R(14)+R(16)=15+41+61=117; a(26)=26+R(25)+R(27)=26+52+72=150

Links

Table of n, a(n) for n=1..59.

Mathematica

Table[n+IntegerReverse[n-1]+IntegerReverse[n+1], {n, 60}] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Dec 16 2017 *)

Crossrefs

Sequence in context: A305495 A003252 A160943 * A212662 A342831 A161351

Adjacent sequences: A160927 A160928 A160929 * A160931 A160932 A160933

Keyword

nonn,base

Author

Claudio Meller, May 30 2009

Status

approved