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%I #16 Jun 30 2023 10:27:08
%S 4,4,4,5,3,7,9,9,13,14,11,13,12,13,14,13,14,11,13,13,14,15,13,14,15,
%T 10,11,12,12,14,21,18,20,20,21,19,21,19,20,21,22,19,20,21,22,22,14,24,
%U 25,25,23,24,23,23,23,24,24,26,23,26,23
%N Number of letters in n-th prime (in Dutch).
%C The 'ij' in 'vijf' (five) has been counted as two letters here, as in A090589.
%F a(n) = A090589(prime(n)). - _Michel Marcus_, Sep 05 2013
%e a(1) = 4 because the first prime is 2, and it has in the Dutch language (twee) 4 letters.
%Y Cf. A090589.
%K nonn,word,more
%O 1,1
%A _Ivan Panchenko_, Aug 28 2009
%E a(21)-a(25) from _Charles R Greathouse IV_, Aug 26 2017
%E a(26)-a(60) from _J.W.L. (Jan) Eerland_, Jun 27 2023