A159986 Catalan numbers read modulo 7.

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

Offset

0,3

Links

Table of n, a(n) for n=0..105.

Formula

a(n) = A000108(n) mod 7.

Crossrefs

Cf. A000108 (Catalan numbers).

Sequence in context: A020773 A249422 A100085 * A065452 A370541 A004598

Adjacent sequences: A159983 A159984 A159985 * A159987 A159988 A159989

Keyword

easy,nonn

Author

Philippe Deléham, Apr 28 2009

Extensions

More terms from Philippe Deléham, Sep 16 2009

Corrected and extended by Philippe Deléham, Oct 23 2011

Status

approved