OFFSET
0,3
LINKS
Veronika Irvine, Lace Tessellations: A mathematical model for bobbin lace and an exhaustive combinatorial search for patterns, PhD Dissertation, University of Victoria, 2016.
EXAMPLE
Triangle begins:
1,1,
4,4,2,1,
20,19,13,8,3,1,
104,98,76,52,28,13,4,1,
556,526,434,319,201,111,50,19,5,1,
3032,2887,2470,1910,1316,811,436,205,80,26,6,1,
16778,16073,14085,11304,8259,5489,3284,1763,833,344,119,34,7,1,
93872,90386,80584,66514,50680,35588,22912,13476,7176,3437,1456,539,168,43,8,1,
...
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
N. J. A. Sloane, Aug 19 2017
STATUS
approved