OFFSET
0,4
EXAMPLE
Triangle T(n, k) starts:
[0] 1;
[1] 1, 1;
[2] 4, 8, 4;
[3] 36, 108, 108, 36;
[4] 144, 576, 864, 576, 144;
[5] 3600, 18000, 36000, 36000, 18000, 3600;
[6] 14400, 86400, 216000, 288000, 216000, 86400, 14400;
MAPLE
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Peter Luschny, Aug 19 2022
STATUS
approved