A240587 Primes p of the form n^2 + 123456789 where 123456789 is the first zeroless pandigital number.

123457189, 123459289, 123465253, 123466789, 123470713, 123481753, 123482389, 123486373, 123489913, 123501733, 123505189, 123510613, 123535189, 123545593, 123564373, 123571033, 123584953, 123587833, 123592213, 123610453, 123631513, 123641689, 123657493

Offset

1,1

Links

K. D. Bajpai, Table of n, a(n) for n = 1..1111

Example

123457189 is a prime and appears in the sequence because 123457189 = 20^2 + 123456789.
123459289 is a prime and appears in the sequence because 123459289 = 50^2 + 123456789.

Maple

KD := proc() local a; a:=n^2+123456789; if isprime(a) then RETURN (a); fi; end: seq(KD(), n=1..1000);

Mathematica

Select[Table[k^2+123456789, {k, 1, 3000}], PrimeQ]

Crossrefs

Cf. A000040, A002496, A028871, A050289, A056899.

Sequence in context: A288941 A175547 A053654 * A323026 A247187 A147647

Adjacent sequences: A240584 A240585 A240586 * A240588 A240589 A240590

Keyword

nonn,base

Author

K. D. Bajpai, Apr 08 2014

Status

approved