login
A055957
n - reversal of base 8 digits of n (written in base 10).
0
0, 0, 0, 0, 0, 0, 0, 0, 7, 0, -7, -14, -21, -28, -35, -42, 14, 7, 0, -7, -14, -21, -28, -35, 21, 14, 7, 0, -7, -14, -21, -28, 28, 21, 14, 7, 0, -7, -14, -21, 35, 28, 21, 14, 7, 0, -7, -14, 42, 35, 28, 21, 14, 7, 0, -7, 49, 42, 35, 28, 21, 14, 7, 0, 63, 0, -63, -126, -189, -252, -315, -378, 63, 0, -63, -126, -189, -252, -315
OFFSET
0,9
COMMENTS
a(n) is a multiple of 7.
FORMULA
a(n) = n - A030107(n).
MATHEMATICA
Array[#-FromDigits[Reverse[IntegerDigits[#, 8]], 8]&, 80, 0] (* Harvey P. Dale, Jun 05 2012 *)
CROSSREFS
Sequence in context: A019597 A096444 A246918 * A165090 A341484 A117013
KEYWORD
base,sign
AUTHOR
Henry Bottomley, Jul 18 2000
STATUS
approved