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A100502
Primes arising in A099678.
1
10301, 10501, 10601, 101501, 101701, 102001, 102101, 102301, 102701, 103001, 103801, 104701, 104801, 105401, 105601, 105701, 106501, 106801, 107101, 107201, 108301, 108401, 109001, 109201, 1010201, 1010501, 1011001, 1011601, 1012201, 1012601, 1013401
OFFSET
1,1
MAPLE
t0:=[]; u0:=[]; for n from 0 to 500 do p0:="10"; p1:="01"; t1:=cat(p0, n, p1); t1:=convert(t1, decimal, 10); if isprime(t1) then t0:=[op(t0), n]; u0:=[op(u0), t1]; fi; od: u0;
MATHEMATICA
p = Select[ Range[280], PrimeQ[ FromDigits[Join[{1, 0}, IntegerDigits[ # ], {0, 1}]]] &]; Table[ FromDigits[ Join[{1, 0}, IntegerDigits[ p[[n]]], {0, 1}]], {n, 29}] (* Robert G. Wilson v, Nov 20 2004 *)
CROSSREFS
Cf. A099678.
Sequence in context: A154089 A227410 A227411 * A099746 A083438 A212939
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Nov 19 2004
STATUS
approved