A287353 a(0)=0; for n>0, a(n) = 10*a(n-1) + prime(n).

0, 2, 23, 235, 2357, 23581, 235823, 2358247, 23582489, 235824913, 2358249159, 23582491621, 235824916247, 2358249162511, 23582491625153, 235824916251577, 2358249162515823, 23582491625158289

Offset

0,2

Links

Michael De Vlieger, Table of n, a(n) for n = 0..1000

Mathematica

FoldList[10 #1 + Prime@ #2 &, 0, Range@ 17] (* Michael De Vlieger, May 24 2017 *)

Prog

(Python)
from sympy import prime
l = [0]
for i in range(20):
    l += [10 * l[i] + prime(i + 1)]
print(l) # Indranil Ghosh, May 25 2017
(PARI) a(n) = fromdigits(primes(n)); \\ Kevin Ryde, Jun 22 2022

Crossrefs

Cf. A014824, A019518, A092844, A110299.

Sequence in context: A294268 A118385 A098739 * A091762 A309706 A240959

Adjacent sequences: A287350 A287351 A287352 * A287354 A287355 A287356

Keyword

nonn,easy

Author

Luke Zieroth, May 23 2017

Status

approved