A055964 n + reversal of hexadecimal (base 16) digits of n (written in base 10).

0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 17, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255, 272, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255, 272, 289, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238

Offset

0,2

Comments

If n has an even number of hexadecimal digits then a(n) is a multiple of 17.

Links

Robert Israel, Table of n, a(n) for n = 0..10000

Formula

a(n) = n + A056962(n).

Maple

f:= proc(n) local L, i;
   L:= convert(n, base, 16);
   n + add(L[-i]*16^(i-1), i=1..nops(L))
end proc:
map(f, [$0..100]); # Robert Israel, Nov 02 2025

Mathematica

Table[n + IntegerReverse[n, 16], {n, 0, 100}] (* Paolo Xausa, Aug 08 2024 *)

Crossrefs

Cf. A056962, A056964.

Sequence in context: A390445 A195169 A338922 * A055966 A087113 A366846

Adjacent sequences: A055961 A055962 A055963 * A055965 A055966 A055967

Keyword

base,nonn,look

Author

Henry Bottomley, Jul 18 2000

Status

approved