OFFSET
1,5
LINKS
Milan Janjic, Binomial Coefficients and Enumeration of Restricted Words, Journal of Integer Sequences, 2016, Vol 19, #16.7.3
EXAMPLE
Northwest corner:
1....1....1....1....1
1....2....4....6....8
1....1....6....15...28
1....3....4....20...56
1....6....1....15...70
MATHEMATICA
f[i_, j_] := Binomial[Max[i - 1, 2 j - 2], Min[i - 1, 2 j - 2]]
TableForm[Table[f[i, j], {i, 1, 10}, {j, 1, 10}]]
Flatten[Table[f[i, n + 1 - i], {n, 1, 14}, {i, 1, n}]]
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Clark Kimberling, Jan 28 2012
STATUS
approved