%N English spelling of n ends with a(n)-th letter of the alphabet.
%C Sequence could be extended to zero where a(0) would be 15.
%H B. Deal, <a href="http://puzblog2.notlong.com">Blaine's Puzzle Blog</a>.
%H Chuck Gaydos, <a href="http://seqpost2.notlong.com">Sequence puzzle posting at Clifford Pickover forum</a>.
%e One ends with 'e' which is the 5th letter of the alphabet, hence a(1)=5. Two ends with 'o' which is the 15th letter of the alphabet, hence a(2)=15.
%Y Cf. A005606.
%A Blaine J. Deal Feb 06 2006