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A180088 Primes which are the sum of three distinct positive cubes in two or more distinct ways. 4
1009, 4229, 4447, 4733, 6301, 7561, 10657, 12377, 12979, 13103, 13859, 14561, 15569, 15667, 17207, 20663, 20747, 20899, 21673, 22511, 24137, 24499, 25999, 27793, 27917, 28001, 28493, 28729, 29917, 31123, 32579, 32833, 32957, 33119 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

1^3+2^3+10^3=1009=4^3+6^3+9^3

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..10000

MATHEMATICA

lst1=Sort@Select[Flatten[Table[a^3+b^3+c^3, {a, 1, 66}, {b, a-1, 1, -1}, {c, b-1, 1, -1}]], PrimeQ[ # ]&]; lst={}; Do[If[lst1[[n]]==lst1[[n+1]], AppendTo[lst, lst1[[n]]]], {n, Length[lst1]-1}]; lst

CROSSREFS

Cf. A011541, A024974, A025400, A122723

Sequence in context: A126238 A176930 A308793 * A117359 A096210 A133584

Adjacent sequences:  A180085 A180086 A180087 * A180089 A180090 A180091

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Aug 09 2010

STATUS

approved

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Last modified August 3 10:39 EDT 2021. Contains 346435 sequences. (Running on oeis4.)