|
| |
|
|
A108727
|
|
Numbers n such that 11*n + 31 is prime.
|
|
0
| |
|
|
0, 2, 6, 12, 18, 20, 26, 32, 38, 56, 60, 66, 72, 80, 86, 90, 96, 98, 102, 116, 122, 128, 132, 138, 140, 146, 156, 168, 170, 180, 188, 192, 206, 210, 222, 228, 240, 242, 252, 266, 270, 272, 276, 278, 290, 300, 312, 318, 326, 336, 342, 350, 356, 362, 366, 368, 380
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
EXAMPLE
| If n=0, then 11*n + 31 = 31 (prime).
If n=56, then 11*n + 31 = 647 (prime).
|
|
|
MAPLE
| a:=proc(n) if isprime(11*n+31)=true then n else fi end: seq(a(n), n=0..450); (Deutsch)
|
|
|
MATHEMATICA
| Select[Range[0, 400], PrimeQ[11#+31]&] (* From Harvey P. Dale, Nov 02 2011 *)
|
|
|
CROSSREFS
| Cf. A108233.
Sequence in context: A053457 A154030 A055560 * A138630 A026229 A043343
Adjacent sequences: A108724 A108725 A108726 * A108728 A108729 A108730
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Jun 21 2005
|
|
|
EXTENSIONS
| More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Jun 26 2005
|
| |
|
|
