

A005606


Position of first letter of n (in English) in alphabet.
(Formerly M4958)


9



26, 15, 20, 20, 6, 6, 19, 19, 5, 14, 20, 5, 20, 20, 6, 6, 19, 19, 5, 14, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19
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OFFSET

0,1


COMMENTS

English name for n begins with a(n)th letter.


REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).


LINKS



EXAMPLE

'One' begins with 'O' and 'O' is the fifteenth letter hence a(1)=15.


MATHEMATICA

Table[LetterNumber[Characters[IntegerName[n, "Words"]][[1]]], {n, 0, 80}] (* Harvey P. Dale, Jun 06 2016 *)


PROG

(Python)
from num2words import num2words
def a(n): return ord(num2words(n)[0])  96


CROSSREFS



KEYWORD

word,nonn,nice,easy


AUTHOR



EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Oct 02 2000


STATUS

approved



