A181117 Triangle T(n,k) read by rows. T(n,k) = A046644(A126988).

1, 2, 1, 2, 0, 1, 8, 2, 0, 1, 2, 0, 0, 0, 1, 4, 2, 2, 0, 0, 1, 2, 0, 0, 0, 0, 0, 1, 16, 8, 0, 2, 0, 0, 0, 1, 8, 0, 2, 0, 0, 0, 0, 0, 1, 4, 2, 0, 0, 2, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 16, 4, 8, 2, 0, 2, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 2, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 1

Offset

1,2

Comments

Denominator in fraction A181116/A181117.

Links

Table of n, a(n) for n=1..105.

Example

Triangle starts:
1,
2,1,
2,0,1,
8,2,0,1,
2,0,0,0,1,
4,2,2,0,0,1,
2,0,0,0,0,0,1,
16,8,0,2,0,0,0,1,
8,0,2,0,0,0,0,0,1,
4,2,0,0,2,0,0,0,0,1,
2,0,0,0,0,0,0,0,0,0,1,
16,4,8,2,0,2,0,0,0,0,0,1,
2,0,0,0,0,0,0,0,0,0,0,0,1,
4,2,0,0,0,0,2,0,0,0,0,0,0,1,
4,0,2,0,2,0,0,0,0,0,0,0,0,0,1,

Crossrefs

Cf. A181116, A046644, A051731.

Sequence in context: A166453 A118233 A255273 * A245472 A332685 A258196

Adjacent sequences: A181114 A181115 A181116 * A181118 A181119 A181120

Keyword

nonn,tabl

Author

Mats Granvik, Oct 04 2010

Status

approved