OFFSET
1,1
COMMENTS
The Blecksmith paper gives incorrect values of a(n) for n>8. - T. D. Noe, Jul 21 2006
LINKS
Richard Blecksmith, Paul Erdős and J. L. Selfridge, Cluster Primes, Amer. Math. Monthly, 106 (1999), 43-48.
Eric Weisstein's World of Mathematics, Cluster Prime.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Christian G. Bower, Feb 15 1999
EXTENSIONS
Corrected by T. D. Noe, Jul 21 2006
STATUS
approved