OFFSET
2,2
LINKS
A. Žigon Tankosič, The (l,r)-Lah Numbers, Journal of Integer Sequences, Article 23.2.6, vol. 26 (2023).
MAPLE
a := proc(n) local T, k; T := proc(n, k) option remember; if n = k then 1; elif k < 2 or n < k then 0; else T(n - 1, k - 1) + (n + k - 1)^3*T(n - 1, k); end if; end proc; add(T(n, k), k = 2 .. n); end proc:
seq(a(n), n = 0 .. 18);
CROSSREFS
KEYWORD
nonn
AUTHOR
Aleks Zigon Tankosic, Jun 17 2024
STATUS
approved