A152669 Last digit of Catalan number A000108(n).

1, 1, 2, 5, 4, 2, 2, 9, 0, 2, 6, 6, 2, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 4, 2, 2, 4, 0, 8, 4, 9, 8, 0, 4, 2, 2, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 6, 6, 2, 0, 4, 2, 2, 4, 0, 2, 6, 6, 2, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0

Offset

0,3

Comments

Catalan numbers read modulo 10. - Philippe Deléham, Apr 28 2009

Links

Amiram Eldar, Table of n, a(n) for n = 0..10000

Formula

a(n)= A000108(n) mod 10. - Philippe Deléham, Apr 28 2009

Mathematica

Mod[CatalanNumber[Range[0, 100]], 10] (* Harvey P. Dale, Apr 07 2015 *)

Crossrefs

Cf. A000108.

Sequence in context: A268647 A177067 A055127 * A324051 A307037 A049060

Adjacent sequences: A152666 A152667 A152668 * A152670 A152671 A152672

Keyword

base,easy,nonn

Author

Omar E. Pol, Dec 10 2008

Status

approved