A234582 Let S_n = 0 followed by base-7 expansion of n, reversed; sequence is concatenation of S_0, S_1, S_2, ...

0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 0, 1, 0, 1, 1, 0, 2, 1, 0, 3, 1, 0, 4, 1, 0, 5, 1, 0, 6, 1, 0, 0, 2, 0, 1, 2, 0, 2, 2, 0, 3, 2, 0, 4, 2, 0, 5, 2, 0, 6, 2, 0, 0, 3, 0, 1, 3, 0, 2, 3, 0, 3, 3, 0, 4, 3, 0, 5, 3, 0, 6, 3, 0, 0, 4, 0, 1, 4, 0, 2, 4, 0, 3, 4, 0, 4, 4, 0, 5, 4, 0, 6, 4, 0, 0, 5, 0, 1, 5, 0

Offset

0,6

Comments

This is a version of the van der Corput sequence in base 7.

References

Crandall, Richard; Pomerance, Carl. Prime numbers. A computational perspective. Springer-Verlag, New York, 2001. xvi+545 pp. ISBN: 0-387-94777-9 MR1821158 (2002a:11007). See pp. 373-374.

Links

Table of n, a(n) for n=0..104.

Maple

See A234577.

Mathematica

Flatten[Table[Join[{0}, Reverse[IntegerDigits[n, 7]]], {n, 0, 50}]] (* Harvey P. Dale, Jun 01 2014 *)

Crossrefs

Cf. A234577-A234585.

Sequence in context: A343554 A137304 A234581 * A234583 A234584 A234585

Adjacent sequences: A234579 A234580 A234581 * A234583 A234584 A234585

Keyword

nonn,base

Author

N. J. A. Sloane, Dec 29 2013

Status

approved