A089764 Primes of the form k! followed by a 1.

11, 61, 241, 1201, 258520167388849766400001, 2631308369336935301672180121600000001, 203978820811974433586402817399028973568000000001, 5075802138772247988008568121766252272260045289880360030994059394809856000000000000001

Offset: 1

Author

Amarnath Murthy, Nov 23 2003

Keywords

• base
• nonn

Comments

The next term has 739 digits. - Harvey P. Dale, Jun 08 2014

Examples

			1201 is a prime obtained as 5! followed by a 1.
		

Crossrefs

Cf. A089765, A126896.

Programs

Mathematica

Select[Table[FromDigits[Join[IntegerDigits[n!],{1}]],{n,50}],PrimeQ] (* Harvey P. Dale, Jun 08 2014 *)

Extensions

More terms from Lior Manor, May 10 2004

One additional term from Harvey P. Dale, Jun 08 2014