login
A316835
Sums of four distinct positive even squares.
1
120, 156, 184, 200, 204, 216, 228, 248, 252, 260, 264, 280, 284, 296, 300, 312, 316, 324, 336, 340, 344, 348, 360, 364, 372, 376, 380, 392, 396, 408, 420, 424, 428, 436, 440, 444, 452, 456, 464, 468, 472, 476, 480, 484, 488, 492, 500, 504, 508, 516, 520, 524, 532, 536, 540, 548, 552
OFFSET
1,1
REFERENCES
Michael D. Hirschhorn, The Power of q: A Personal Journey, Springer 2017. See Chapter 31.
MATHEMATICA
Total/@Subsets[(2*Range[10])^2, {4}]//Union (* Harvey P. Dale, May 21 2019 *)
CROSSREFS
Equals 4*A004433. Cf. A316833, A316834.
Sequence in context: A192277 A034291 A039602 * A179642 A099832 A111399
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 19 2018
STATUS
approved