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A129070 Numbers n such that (n-5)/4 is prime. 0
13, 17, 25, 33, 49, 57, 73, 81, 97, 121, 129, 153, 169, 177, 193, 217, 241, 249, 273, 289, 297, 321, 337, 361, 393, 409, 417, 433, 441, 457, 513, 529, 553, 561, 601, 609, 633, 657, 673, 697, 721, 729, 769, 777, 793, 801, 849, 897, 913, 921, 937, 961, 969 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) = 4*prime(n) + 5. - Zak Seidov, May 12 2007
EXAMPLE
For n=13, (13-5)/4 = 2 which is prime so 13 is the first entry.
PROG
(PARI) g(m) = forprime(p=2, m, n=4*p+5; print1(n", "))
CROSSREFS
Cf. A000040.
Sequence in context: A125262 A163754 A104278 * A335036 A307880 A155923
KEYWORD
easy,nonn
AUTHOR
Cino Hilliard, May 11 2007, May 17 2007
STATUS
approved

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Last modified March 29 08:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)