A122622 a(n) = prime(n)_prime(n).

2, 3, 5, 7, 12, 16, 24, 28, 49, 67, 94, 118, 165, 175, 195, 268, 304, 367, 409, 498, 514, 562, 667, 721, 880, 10202, 10612, 11456, 11890, 12885, 16390, 17555, 19187, 19747, 22806, 23557, 25441, 27550, 28898, 31143, 33303, 34210, 38201, 38989, 40589, 41401, 89254

Offset

1,1

Comments

See A122618 for notation.

Links

Alois P. Heinz, Table of n, a(n) for n = 1..10000

Maple

a:= n-> (b-> (l-> add(l[i]*b^(i-1), i=1..nops(l)))(
              convert(b, base, 10)))(ithprime(n)):
seq(a(n), n=1..50);  # Alois P. Heinz, Aug 31 2021

Mathematica

FromDigits[IntegerDigits[#], #]&/@Prime[Range[50]] (* Harvey P. Dale, Aug 31 2021 *)

Crossrefs

Cf. A000040, A122618.

Sequence in context: A361459 A078912 A105930 * A266775 A024790 A373297

Adjacent sequences: A122619 A122620 A122621 * A122623 A122624 A122625

Keyword

nonn,base

Author

N. J. A. Sloane, Sep 21 2006

Status

approved