Template:Seal triangle Beech/summation

summation of Beech
d
a
0 1 2 3 4 5 6 7 sums
0 1 1
1 1 1 2
2 1 2 2 5
3 1 3 5 4 13
4 1 4 9 11 8 33
5 1 5 14 22 23 16 81
6 1 6 21 41 53 51 36 209
7 1 7 29 70 109 124 115 80 535

This number triangle does probably not have a useful interpretation.

sums: 1, 2, 5, 13, 33, 81, 209, 535