A191248 - OEIS

%I #12 Feb 18 2019 14:48:10

%S 1,1,1,1,2,3,4,2,5,2,6,2,3,6,3,2,7,8,7,6,3,9,3,9,3,9,3,10,3,7,2,19,2,

%T 12,12,24,13,15,14,9,2,16,3,12,13,17,38,4,38,38,4,21,39,4,19,40,4,18,

%U 41,42,23,42,23,23,45,29,47,47,34,26,47,38,21,47,7

%N The number of times that the n-th digit of A019518(n) occurs in A019518(n).

%H Nathaniel Johnston, <a href="/A191248/b191248.txt">Table of n, a(n) for n = 1..10000</a>

%p with(StringTools): lim:=100: s:="": for j from 1 to lim do s:=cat(s, convert(ithprime(j),string)): printf("%d, ", nops([SearchAll(s[j], s)])); od: # _Nathaniel Johnston_, May 28 2011

%Y Cf. A019518, A191233.

%K nonn,easy,base,less

%O 1,5

%A _Juri-Stepan Gerasimov_, May 28 2011

%E Corrected and extended by _Nathaniel Johnston_, May 28 2011