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Smallest nonnegative integer containing the n-th letter of the alphabet (in Spanish), or -1 if no such number exists.
0

%I #10 Sep 20 2020 09:34:26

%S 4,1000000000000,0,2,0,-1,-1,8,5,-1,-1,1000,1000,1,-1,0,

%T 1000000000000000000000000000000000000000000,15,0,2,3,1,9,-1,

%U 1000000000000000000000000000000000000,31,10

%N Smallest nonnegative integer containing the n-th letter of the alphabet (in Spanish), or -1 if no such number exists.

%C There is no known number that contains letters F, G, J, K, Q or W in Spanish

%e a(8) = 8 (ocho), the smallest number whose name contains 'h'.

%Y Cf. A111098.

%K fini,full,word,sign

%O 1,1

%A _Claudio Meller_, Jun 09 2009

%E a(8) and a(17) corrected by _Álvar Ibeas_, Sep 20 2020