OFFSET
1,1
EXAMPLE
a(1) = 5 because "Three" has five letters;
a(2) = 10 because "Three Point" has ten letters;
a(3) = 13 because "Three Point One" has thirteen letters.
MAPLE
A242898 := proc(n)
5+add(A052384(i), i=1..n-1) ;
end proc:
seq(A242898(n), n=1..57) ; # R. J. Mathar, Jun 30 2020
CROSSREFS
KEYWORD
nonn,word,easy
AUTHOR
Jonathan Vos Post, May 25 2014
STATUS
approved