A055126 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A055126

Base-16 complement of n (write n in base 16, then replace each digit with its base-16 negative).

13

0, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 240, 255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 245, 244, 243, 242, 241, 224, 239, 238, 237, 236, 235, 234, 233, 232, 231, 230, 229, 228, 227, 226, 225, 208, 223, 222, 221, 220, 219, 218, 217, 216, 215

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..4095 (4095 = 16^3 - 1)

Index entries for sequences that are permutations of the natural numbers

PROG

(Haskell)

a055126 0 = 0

a055126 n = if d == 0 then 16 * a055126 n' else 16 * a055126 n' + 16 - d

where (n', d) = divMod n 16

-- Reinhard Zumkeller, Mar 12 2014

CROSSREFS

Cf. A004488, A048647, A055115-A055126.

Column k=16 of A248813.

Sequence in context: A022971 A023457 A004456 * A182336 A273369 A272685

Adjacent sequences: A055123 A055124 A055125 * A055127 A055128 A055129

KEYWORD

base,easy,nonn,look

AUTHOR

Henry Bottomley, Apr 19 2000

STATUS

approved