A101293 a(n) = Lucas(n!).

1, 1, 3, 18, 103682, 11981655542024930675232002

Offset: 0

Author

Parthasarathy Nambi, Dec 21 2004

Keywords

• nonn
• easy

Comments

The next term is too large to include.

The next term has 151 digits. - Harvey P. Dale, Jan 04 2018

Examples

			L(3!) = 18.
L(4!) = 103682.
		

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..6

Crossrefs

Cf. A000032, A000142, A063374.

Programs

Maple

a:= n-> (<<1|1>, <1|0>>^n!. <<2, -1>>)[1, 1]:
seq(a(n), n=0..6);  # Alois P. Heinz, Jul 15 2025

Mathematica

LucasL[Range[0,5]!] (* Harvey P. Dale, Jan 04 2018 *)

Formula

a(n) = A000032(A000142(n)).