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A169590
Triangle T(n,k) with : column n = A000034 if n even and column n = A000007 if n odd.
0
1, 2, 1, 1, 0, 1, 2, 0, 2, 1, 1, 0, 1, 0, 1, 2, 0, 2, 0, 2, 1, 1, 0, 1, 0, 1, 0, 1, 2, 0, 2, 0, 2, 0, 2, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1
OFFSET
0,2
COMMENTS
Row sums : A145051.
FORMULA
Sum_{k, 0<=k<=n} T(n,k)= A145051(n+1).
EXAMPLE
Triangle begins: 1 ; 2,1 ; 1,0,1 ; 2,0,2,1 ; 1,0,1,0,1 ; 2,0,2,0,2,1 ; ...
CROSSREFS
Sequence in context: A056890 A321519 A346392 * A300185 A262804 A048825
KEYWORD
nonn,tabl
AUTHOR
Philippe Deléham, Dec 02 2009
STATUS
approved