A156060 Jacobsthal numbers A001045 mod 9.

0, 1, 1, 3, 5, 2, 3, 7, 4, 0, 8, 8, 6, 4, 7, 6, 2, 5, 0, 1, 1, 3, 5, 2, 3, 7, 4, 0, 8, 8, 6, 4, 7, 6, 2, 5, 0, 1, 1, 3, 5, 2, 3, 7, 4, 0, 8, 8, 6, 4, 7, 6, 2, 5, 0, 1, 1, 3, 5, 2, 3, 7, 4, 0, 8, 8, 6, 4, 7, 6, 2, 5, 0, 1, 1, 3, 5, 2, 3, 7, 4, 0, 8, 8, 6, 4, 7, 6, 2, 5, 0, 1, 1, 3, 5, 2, 3, 7, 4, 0, 8, 8, 6, 4, 7

Offset

0,4

Comments

Period length 18. [Proof from A001045(n)=87381*A001045(n-17)+87382*A001045(n-18), where 87381 == 0 (mod 9) and 87382 == 1 (mod 9).] [From R. J. Mathar, Feb 06 2009]

Links

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

Crossrefs

Cf. A001045. [From Dmitry Kamenetsky, Feb 06 2009]

Sequence in context: A279398 A241429 A200109 * A272476 A205701 A218888

Adjacent sequences: A156057 A156058 A156059 * A156061 A156062 A156063

Keyword

nonn,easy

Author

Paul Curtz, Feb 03 2009

Extensions

Extended by R. J. Mathar and Dmitry Kamenetsky, Feb 06 2009

Status

approved