login
A217557
The difference between the reversal of an 8-bit integer and the original integer.
1
0, 127, 62, 189, 28, 155, 90, 217, 8, 135, 70, 197, 36, 163, 98, 225, -8, 119, 54, 181, 20, 147, 82, 209, 0, 127, 62, 189, 28, 155, 90, 217, -28, 99, 34, 161, 0, 127, 62, 189, -20, 107, 42, 169, 8, 135, 70, 197, -36, 91, 26, 153, -8, 119, 54, 181, -28, 99
OFFSET
0,2
COMMENTS
The difference between the reversal of an 8-bit integer and the original integer.
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..255 (all terms of the sequence).
FORMULA
a(n) = A160638(n) - n.
EXAMPLE
5 -> 00000101 -> 10100000 = 160 so a(5) = 155.
MATHEMATICA
Table[FromDigits[Reverse[PadLeft[IntegerDigits[n, 2], 8, 0]], 2]-n, {n, 0, 60}] (* Harvey P. Dale, Oct 12 2012 *)
PROG
(PARI) A217557(n)=sum(i=0, 7, bittest(n, 7-i)<<i)-n \\ - M. F. Hasler, Oct 07 2012
CROSSREFS
Cf. A160638.
Sequence in context: A145586 A340344 A180352 * A320571 A082456 A326717
KEYWORD
sign,base,fini,full
AUTHOR
Jon Perry, Oct 06 2012
STATUS
approved