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A294308 Integers with precisely seven partitions into sums of four squares of nonnegative numbers. 2
82, 98, 100, 102, 106, 108, 118, 125, 129, 132, 133, 134, 135, 161, 163, 173, 183, 197, 199, 204, 211, 212, 215, 236, 263, 328, 392, 400, 408, 424, 432, 472, 528, 536, 816, 848, 944, 1312, 1568, 1600, 1632, 1696, 1728, 1888, 2112, 2144, 3264, 3392, 3776 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A002635(a(n)) = 7.

LINKS

Robert Price, Table of n, a(n) for n = 1..74

D. H. Lehmer, On the Partition of Numbers into Squares, The American Mathematical Monthly, Vol. 55, No. 8, October 1948, pp. 476-481.

Index entries for sequences related to sums of squares

MATHEMATICA

f[n_]:=Length@PowersRepresentations[n, 4, 2]; Select[Range@650, f@#==7 &] (* Vincenzo Librandi, Oct 28 2017 *)

CROSSREFS

Cf. A001156, A002635, A006431, A025428, A180149, A245022, A294282, A294297, A293175.

Sequence in context: A099067 A304891 A316573 * A025361 A296809 A223085

Adjacent sequences:  A294305 A294306 A294307 * A294309 A294310 A294311

KEYWORD

nonn

AUTHOR

Robert Price, Oct 27 2017

STATUS

approved

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Last modified June 19 19:11 EDT 2019. Contains 324222 sequences. (Running on oeis4.)