|
|
A089685
|
|
a={1,3,7,9} p[n]=Prime[n]*10+a[[1+Mod[n,4]]] a(m) = if p[n] is prime, then p[n]
|
|
0
|
|
|
23, 37, 59, 71, 113, 137, 179, 191, 233, 479, 593, 617, 733, 797, 839, 1039, 1093, 1279, 1373, 1499, 1511, 1637, 1931, 1973, 1997, 2273, 2297, 2339, 2579, 2693, 2833, 3079, 3319, 3371, 3539, 3673, 4019, 4091, 4217, 4637, 4679, 4999, 5639, 5879, 6079, 6131
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
A prime generator function based on the primes and the digit set {1,3,7,9}.
|
|
LINKS
|
|
|
MATHEMATICA
|
a={1, 3, 7, 9} digits=3*200 b=Table[Prime[n]*10+a[[1+Mod[n, 4]]], {n, 1, digits}] c=Table[If[PrimeQ[b[[n]]]==True, b[[n]], 0], {n, 1, digits}] d=Delete[Union[c], 1]
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|