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%I #26 May 27 2024 15:26:25
%S 2,13,124,3087,64660,3117065,102223912,7288040287,1055368261516,
%T 55582020481869,10025310041948140,1142621051584775677,
%U 82818850586971127398,11283315480373831581813,2840525835404253352402868,749937387889627635858910767,75361395412432048667844493160
%N The first n primes interpreted as digits in base prime(n+1).
%F a(n) = Sum_{k=0..n-1} prime(n-k)*prime(n+1)^k.
%e a(3) = 124 = 235_7.
%e a(5) = 64660 = 2357b_13.
%t Table[Sum[Prime[n - k]*Prime[n + 1]^k, {k, 0, n - 1}], {n, 17}] (* _Michael De Vlieger_, Apr 19 2024 *)
%o (PARI) a(n) = sum(k=0, n-1, prime(n-k)*prime(n+1)^k); \\ _Michel Marcus_, Apr 19 2024
%Y Cf. A023811, A019518.
%K nonn,base,easy
%O 1,1
%A _Mitch Goldman_, Apr 18 2024
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