|
| |
|
|
A059709
|
|
a(n)_th Fibonorial number (product of first a(n) nonzero Fibonacci numbers) - 1 is prime.
|
|
1
| | |
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| a(n)_th almost-Fibonorial number is prime.
|
|
|
LINKS
| C. K. Caldwell, Fibonacci Numbers
Eric Weisstein's World of Mathematics, Fibonorial [From Eric W. Weisstein (eric(AT)weisstein.com), Dec 01 2009]
|
|
|
MATHEMATICA
| a = 1; Do[ a = a*Fibonacci[n]; If[ PrimeQ[a - 1], Print[n] ], {n, 1, 247} ]
|
|
|
CROSSREFS
| Cf. A053408.
Sequence in context: A073073 A047567 A050038 * A071623 A140293 A075341
Adjacent sequences: A059706 A059707 A059708 * A059710 A059711 A059712
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 07 2001
|
|
|
EXTENSIONS
| Definition corrected by Daniel Forgues (squid(AT)zensearch.com), Nov 29 2009
|
| |
|
|
