OFFSET
3,3
LINKS
Andrew Howroyd, Table of n, a(n) for n = 3..1277
R. C. Read, Contributions to the cell growth problem, Canad. J. Math., 14 (1962), 1-20.
FORMULA
T(n,k) = 0 for n > 3*k. - Andrew Howroyd, Oct 02 2017
EXAMPLE
Triangle starts:
1;
0, 8;
0, 6, 25;
0, 1, 44, 50;
0, 0, 32, 154, 83;
0, 0, 9, 212, 376, 124;
0, 0, 1, 158, 784, 750, 173;
0, 0, 0, 62, 987, 2133, 1316, 230;
...
CROSSREFS
KEYWORD
AUTHOR
N. J. A. Sloane, Feb 05 2001
EXTENSIONS
a(8) corrected and terms a(39) and beyond from Andrew Howroyd, Oct 02 2017
STATUS
approved