A139185 a(n) = (n! - 10)/10.

11, 71, 503, 4031, 36287, 362879, 3991679, 47900159, 622702079, 8717829119, 130767436799, 2092278988799, 35568742809599, 640237370572799, 12164510040883199, 243290200817663999

Offset: 5

Author

Artur Jasinski, Apr 11 2008

Keywords

• nonn
• easy

Comments

Original name: Natural numbers of the form (n!-10)/10.

Links

• Vincenzo Librandi, Table of n, a(n) for n = 5..300

Crossrefs

Cf. A033312, A139172, A139173, A139174, A139175, A139176, A139177, A139183, A139184.

Programs

GAP

List([5..25],n->(Factorial(n)-10)/10); # Muniru A Asiru, Oct 20 2018

Magma

[(Factorial(n)-10)/10: n in [5..25]]; // Vincenzo Librandi, Jul 20 2011

Maple

seq((factorial(n)-10)/10,n=5..25); # Muniru A Asiru, Oct 20 2018

Mathematica

Table[(n! - 10)/10, {n, 5, 20}]

Extensions

New name from Jon E. Schoenfield, Oct 19 2018