OFFSET
3,2
COMMENTS
Such a number exists for n >= 3 due to a theorem of Enge, Hart and Johansson (see the link, p. 11).
LINKS
Peter Luschny, Table of n, a(n) for n = 3..1000
Andreas Enge, William Hart and Fredrik Johansson, Short addition sequences for theta functions, Journal of Integer Sequences, Vol. 21 (2018), Article 18.2.4. Also available as arXiv:1608.06810 [math.NT].
CROSSREFS
KEYWORD
nonn
AUTHOR
Peter Luschny, Jun 04 2018
STATUS
approved