A202698 The first of a set of three triangles constructed by the same rule as A202692-A202694, but where the top entries in the three triangles are 0,1,0 respectively.
0, 0, 0, 3, 3, 3, 0, 3, 6, 9, 147, 147, 144, 138, 129
Offset: 1
Examples
The triangle begins: 0 0 0 3 3 3 0 3 6 9 147 147 144 138 129 ... The three triangles together: 0 1 0 0 0 0 1 1 1 3 3 3 3 3 2 2 1 0 0 3 6 9 9 12 15 17 17 19 20 20 147 147 144 138 129 129 120 108 93 76 76 59 40 20 0
Links
- M. Josuat-Verges, J.-C. Novelli and J.-Y. Thibon, The algebraic combinatorics of snakes, arXiv preprint arXiv:1110.5272, 2011