OFFSET
0,4
LINKS
Clark Kimberling, Table of n, a(n) for n = 0..1000
MATHEMATICA
a[0] = 1; a[1] = 1; a[2] = 1;
a[n_] := a[n] = n a[n - 1] - a[n - 2] + a[Floor[n/2]];
Table[a[n], {n, 0, 30}] (* A298419 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Feb 11 2018
STATUS
approved