|
|
A085065
|
|
a(1) = 4, a(n) = smallest number of the form k*a(n-1) +1 with the same prime signature p^2, where p is a prime.
|
|
1
|
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
a(8) = (28*A(7)+1)^2, which has 108 digits and is too large to include. - David Wasserman, Jan 11 2005
|
|
LINKS
|
|
|
CROSSREFS
|
A061092 gives the sequence with a(1) = 2 i.e. terms of the form k*a(n-1)+1 which are primes.( prime signature p^1)
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jun 29 2003
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|