%I #15 Jan 10 2023 03:17:19

%S 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,

%T 0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,

%U 0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0

%N Number of 8's in decimal expansion of prime(n).

%H Reinhard Zumkeller, <a href="/A085982/b085982.txt">Table of n, a(n) for n = 1..10000</a>

%t DigitCount[Prime[Range[150]],10,8](* _Harvey P. Dale_, Jun 11 2016 *)

%o (Haskell)

%o a085982 = count8 0 . a000040 where

%o count8 c x | d == 8 = if x < 10 then c + 1 else count8 (c + 1) x'

%o | otherwise = if x < 10 then c else count8 c x'

%o where (x', d) = divMod x 10

%o -- _Reinhard Zumkeller_, Apr 08 2014

%Y Cf. 0's A085974, 1's A085975, 2's A085976, 3's A085977, 4's A085978, 5's A085979, 6's A085980, 7's A085981, 9's A085983.

%K base,nonn

%O 1,152

%A _Jason Earls_, Jul 06 2003