A047700 Numbers that are the sum of 5 positive squares.

5, 8, 11, 13, 14, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79

Offset: 1

Author

Arlin Anderson (starship1(AT)gmail.com)

Keywords

• nonn
• easy

Comments

Complement of A047701.

Examples

			From _David A. Corneth_, Aug 04 2020: (Start)
2009 is in the sequence as 2009 = 18^2 + 18^2 + 18^2 + 19^2 + 26^2.
2335 is in the sequence as 2335 = 19^2 + 19^2 + 20^2 + 22^2 + 27^2.
3908 is in the sequence as 3908 = 24^2 + 24^2 + 26^2 + 28^2 + 36^2. (End)
		

Links

• David A. Corneth, Table of n, a(n) for n = 1..10000
• Index entries for sequences related to sums of squares
• Index entries for linear recurrences with constant coefficients, signature (2,-1).

Crossrefs

Cf. A000414, A003328, A047701, A294675, A344795, A344805.

Formula

a(n) = n + 12 for n >= 22. - David A. Corneth, Aug 04 2020