Template:Seal triangles Oak and Maple/Oak

 

🌊    triangle Oak (A022166)    row sums Daisy (A006116)
k
n
0 1 2 3 4 5 6 7 sums
0 1 1
1 1 1 2
2 1 3 1 5
3 1 7 7 1 16
4 1 15 35 15 1 67
5 1 31 155 155 31 1 374
6 1 63 651 1395 651 63 1 2825
7 1 127 2667 11811 11811 2667 127 1 29212