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A046049 Sum of 18 but no fewer nonzero fourth powers. 4
63, 78, 143, 158, 223, 238, 303, 318, 383, 398, 463, 478, 543, 558, 623, 703, 783, 863, 943, 1008, 1023, 1103, 1183, 1248 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A099591 for references that show that this sequence is full.

LINKS

Table of n, a(n) for n=1..24.

Eric Weisstein's World of Mathematics, Biquadratic Number.

MATHEMATICA

Select[ Range[1300], (pr = PowersRepresentations[#, 18, 4]; test = pr != {} && FreeQ[pr, r_List /; (Times @@ r) == 0]; If[test, Print[#]]; test) &] (* Jean-Fran├žois Alcover, Oct 30 2012 *)

CROSSREFS

Cf. A000583, A002377, A046048, A099591.

Sequence in context: A095543 A073569 A238088 * A240528 A125112 A043186

Adjacent sequences:  A046046 A046047 A046048 * A046050 A046051 A046052

KEYWORD

nonn,fini,full

AUTHOR

Eric W. Weisstein

EXTENSIONS

More terms from Arlin Anderson (starship1(AT)gmail.com).

STATUS

approved

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Last modified April 29 19:06 EDT 2017. Contains 285613 sequences.