OFFSET
0,3
LINKS
Paul D. Hanna, Table of n, a(n), n = 0..100.
FORMULA
From Gary W. Adamson, Aug 02 2011: (Start)
a(n) = upper left term of M^n, M is an infinite square production matrix in which nonzero terms = A033184 with the first "1" deleted, as follows: M =
1, 1, 0, 0, 0, 0, ...
2, 2, 1, 0, 0, 0, ...
5, 5, 3, 1, 0, 0, ...
14, 14, 9, 4, 1, 0, ...
42, 42, 28, 14, 5, 1, ...
... (End)
EXAMPLE
a(3) = 14 = the upper left term of M^3.
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Jan 24 2007
STATUS
approved