OFFSET
0,2
COMMENTS
Number of endofunctions on a set with m+n elements, where the maximum indegree is m, when m > n. Increasing m just adds additional points with empty preimage that map to the unique element with indegree m.
PROG
(PARI) \\ Needs F from A127119.
seq(n)={my(m=2*n-1); Vecrev(F(m)[m, n..m])} \\ Andrew Howroyd, Feb 21 2020
CROSSREFS
KEYWORD
nonn
AUTHOR
Franklin T. Adams-Watters, Jan 05 2007
EXTENSIONS
Terms a(5) and beyond from Andrew Howroyd, Feb 21 2020
STATUS
approved