OFFSET
1,2
REFERENCES
Ben Hamilton, Brainteasers and Mindbenders, Fireside, 1992, p. 51.
LINKS
Sean A. Irvine, Java program (github)
FORMULA
T(1,m) = m, T(n,1) = 1, T(n,m) = T(n-1,m-1) * T(n-1,m) + T(n,m-1).
EXAMPLE
Original puzzle ("May 5" in Hamilton):
1, 2, 3, 4, 5;
1, 3, 9, 21, 41;
1, 4, 31, 220, 1081;
1, 5, 129, 6949, ?.
CROSSREFS
KEYWORD
AUTHOR
Sean A. Irvine, Dec 02 2022
STATUS
approved