A074281 Primes of the form Lucas(2*n)/3.

41, 281, 90481, 29134601, 3020733700601, 313195711516578281, 5280544535667472291277149119296546201, 547497418496144666543167613835090178297001

Offset: 1

Author

Shane Findley, Sep 21 2002

Keywords

• nonn

Comments

The next term has 96 digits. - Harvey P. Dale, Apr 29 2011.

Examples

			Lucas(2*5)=3*41, Lucas(2*7)=3*281, Lucas(2*13)=3*90481.
		

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..16
• Ron Knott, The Mathematics of the Fibonacci series.
• Ron Knott, Pi and the Fibonacci Numbers.

Crossrefs

Values of n are given in A074304.

Programs

Mathematica

Select[Table[LucasL[2n]/3,{n,400}],PrimeQ]  (* Harvey P. Dale, Apr 29 2011 *)