A202694 The third of three triangles counting 3-colored alternating permutations by their last value.

1, 2, 3, 5, 3, 0, 46, 51, 54, 54, 205, 159, 108, 54, 0

Offset

1,2

Links

Table of n, a(n) for n=1..15.

M. Josuat-Verges, J.-C. Novelli and J.-Y. Thibon, The algebraic combinatorics of snakes, arXiv preprint arXiv:1110.5272 [math.CO], 2011.

Example

Triangle begins:
1
2 3
5 3 0
46 51 54 54
205 159 108 54 0
...

Crossrefs

See A202692 for further information.

Cf. A202693.

Sequence in context: A069110 A238684 A352377 * A123221 A197032 A321781

Adjacent sequences: A202691 A202692 A202693 * A202695 A202696 A202697

Keyword

nonn,tabl,more

Author

N. J. A. Sloane, Dec 23 2011

Status

approved