OFFSET
1,2
COMMENTS
Conjecture: a(494) = 1001001001001998 (for the letter 'a').
LINKS
Hans Havermann, Table of n, a(n) for n = 1..493
Hans Havermann, On target (revisited)
EXAMPLE
In the list of English consecutive positive integers (one, two, three, ...)
the first 'o', the first 'n', and the first 'e' are in 'one',
the 2nd 'o' is the only such in 'two',
the 3rd 'e' is the second of two such in 'three',
the 11th 'e' is the second of three such in 'eleven',
the 23rd 't' is the third of three such in 'twenty-three',
the 24th 't' is the first of two such in 'twenty-four',
the 29th 'n' is the second of three such in 'twenty-nine',
the 31st 'n' is the only such in 'thirty-one',
the 108th 'n' is the second of two such in 'one hundred eight', ...
CROSSREFS
KEYWORD
nonn,base,word,fini
AUTHOR
Claudio Meller and Hans Havermann, Dec 15 2020
STATUS
approved