OFFSET
0,2
LINKS
Rezig Boualam and Moussa Ahmia, Log-concavity and strong q-log-convexity for some generalized triangular arrays, arXiv:2409.18886 [math.CO], 2024. See pp. 3,6.
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;
2,2,1;
9,12,9,4,1;
51,76,69,44,20,6,1;
323,512,518,392,230,104,35,8,1;
2188,3610,3915,3288,2235,1242,560,200,54,10,1;
15511,26324,29964,27016,20240,12804,6853,3080,1143,340,77,12,1;
113634,196938,232323,220584,177177,122694,73710,38376,17199,6552,2079,532,104,14,1;
...
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
N. J. A. Sloane, Aug 19 2017
STATUS
approved