login
A223729
Numbers appearing in a theorem on the representation of numbers as sums of five non-vanishing squares.
0
1, 2, 4, 5, 7, 10, 13, 28
OFFSET
1,2
COMMENTS
See A047701 for the positive numbers that are not the sum of five nonzero squares, which are precisely 1, 2, 3, 4 and 5 + a(n), n = 1,...,8. This appears as Theorem 2. in Grosswald's book on p. 73-4 with references to E. Dubouis (1911) and some others.
REFERENCES
E. Dubouis, Solution of a problem of J. Tannery, L'Intermédiaire Math. 18 (1911) 55-56.
E. Grosswald, Representations of Integers as Sums of Squares. Springer-Verlag, NY, 1985, p. 73-74.
CROSSREFS
Sequence in context: A340246 A062463 A056716 * A190235 A023181 A123065
KEYWORD
nonn,fini,full
AUTHOR
Wolfdieter Lang, Mar 27 2013
STATUS
approved