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A090737
Triangle of Eulerian numbers modulo 3.
0
1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 0, 2, 1, 1, 0, 2, 2, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 2, 0, 0, 0, 0, 0, 0, 0, 2, 1, 1, 0, 2, 0, 0, 0, 0, 0, 0, 2, 0, 1, 1, 0, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 1, 1, 1, 0, 2, 2, 0, 0, 0, 0, 2, 2, 0, 1, 1
OFFSET
1,8
PROG
(PARI) T(n, k)=sum(j=0, k, (-1)^j*(k-j)^n*binomial(n+1, j))%3
CROSSREFS
Cf. A008292.
Sequence in context: A208183 A214810 A257248 * A204016 A343334 A157865
KEYWORD
nonn,tabl
AUTHOR
Benoit Cloitre, Jan 18 2004
STATUS
approved