OFFSET
0,3
EXAMPLE
[ 0] 1;
[ 1] 1;
[ 2] 2;
[ 3] 6, 8;
[ 4] 24, 8;
[ 5] 120, 16;
[ 6] 720, 48, 64;
[ 7] 5040, 192, 64;
[ 8] 40320, 960, 128;
[ 9] 362880, 5760, 384, 512;
[10] 3628800, 40320, 1536, 512;
[11] 39916800, 322560, 7680, 1024;
[12] 479001600, 2903040, 46080, 3072, 4096;
MAPLE
T := (n, k) -> 2^(3*k)*(n-3*k)!: seq(seq(T(n, k), k = 0..n/3), n = 0..13);
MATHEMATICA
Table[2^(3k) (n-3k)!, {n, 0, 20}, {k, 0, Floor[n/3]}]//Flatten (* Harvey P. Dale, Feb 13 2022 *)
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Peter Luschny, Jun 06 2021
STATUS
approved