A169590 Triangle T(n,k) with : column n = A000034 if n even and column n = A000007 if n odd.

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.

Links

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

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

Adjacent sequences: A169587 A169588 A169589 * A169591 A169592 A169593

Keyword

nonn,tabl

Author

Philippe Deléham, Dec 02 2009

Status

approved