login
A079095
Squarefree numbers of the form (prime(n)+1)*(prime(n+1)+1)/4.
3
3, 6, 42, 399, 462, 930, 1054, 3135, 4830, 6478, 13110, 19599, 20022, 24963, 26394, 35530, 38805, 39999, 41205, 44310, 52899, 71002, 74254, 81510, 94863, 95790, 103362, 109230, 111547, 114243, 135790, 144399, 146685, 157206, 166866, 183183
OFFSET
1,1
COMMENTS
Subsequence of A079079; A008966(a(n)) = 1.
LINKS
EXAMPLE
(A000040(12)+1)*(A000040(12+1)+1)/4 = (37+1)*(41+1)/4 = 399 = 3*7*19, therefore 399 is a term.
PROG
(Haskell)
a079095 n = a079095_list !! (n-1)
a079095_list = filter ((== 1) . a008966) a079079_list
-- Reinhard Zumkeller, Oct 09 2012
CROSSREFS
Sequence in context: A360830 A109491 A085696 * A125889 A300599 A002028
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Dec 22 2002
STATUS
approved