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 A258262 Cubes that are a sum of the cubes of three primes. 2
 128787625, 153130375, 356400829, 647214625, 1102302937, 1115157653, 1214767763, 1454419637, 3463512697, 14796346375, 18630700451, 21184951663, 21323063917, 21740999671, 24820429213, 29704593673, 32005984375, 38580208939, 51770001583, 53540005609, 68769820673, 74352915125, 89374579111, 94507253875, 113872553423 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS See comment in A258865. LINKS Chai Wah Wu, Table of n, a(n) for n = 1..367 EXAMPLE . n | a(n) . ----+---------------------------------------------------- . 1 | 128787625 | 505^3 | 59^3 + 163^3 + 499^3 . 2 | 153130375 | 535^3 | 349^3 + 379^3 + 383^3 . 3 | 356400829 | 709^3 | 193^3 + 461^3 + 631^3 . 4 | 647214625 | 865^3 | 11^3 + 607^3 + 751^3 . 5 | 1102302937 | 1033^3 | 599^3 + 691^3 + 823^3 . 6 | 1115157653 | 1037^3 | 59^3 + 233^3 + 1033^3 . 7 | 1214767763 | 1067^3 | 97^3 + 269^3 + 1061^3 . 8 | 1454419637 | 1133^3 | 577^3 + 797^3 + 911^3 . 9 | 3463512697 | 1513^3 | 337^3 + 967^3 + 1361^3 . 10 | 14796346375 | 2455^3 | 1049^3 + 1789^3 + 1993^3 . 11 | 18630700451 | 2651^3 | 281^3 + 1889^3 + 2281^3 . 12 | 21184951663 | 2767^3 | 103^3 + 2179^3 + 2213^3 . 13 | 21323063917 | 2773^3 | 331^3 + 467^3 + 2767^3 . 14 | 21740999671 | 2791^3 | 769^3 + 1879^3 + 2447^3 . 15 | 24820429213 | 2917^3 | 31^3 + 1951^3 + 2591^3 . 16 | 29704593673 | 3097^3 | 1237^3 + 2081^3 + 2659^3 . 17 | 32005984375 | 3175^3 | 809^3 + 1789^3 + 2953^3 . 18 | 38580208939 | 3379^3 | 641^3 + 1993^3 + 3121^3 . 19 | 51770001583 | 3727^3 | 1399^3 + 1667^3 + 3541^3 . 20 | 53540005609 | 3769^3 | 11^3 + 1783^3 + 3631^3 . 21 | 68769820673 | 4097^3 | 1187^3 + 1861^3 + 3929^3 . 22 | 74352915125 | 4205^3 | 1657^3 + 1697^3 + 4019^3 . 23 | 89374579111 | 4471^3 | 1931^3 + 3163^3 + 3697^3 . 24 | 94507253875 | 4555^3 | 521^3 + 2833^3 + 4153^3 . 25 | 113872553423 | 4847^3 | 593^3 + 1237^3 + 4817^3 . PROG (Haskell) a258262 n = a258262_list !! (n-1) a258262_list = filter ((== 1) . a010057) a258865_list CROSSREFS Cf. A010057, A258865, A030078, A048766. Sequence in context: A256118 A036341 A184648 * A059092 A147715 A251400 Adjacent sequences: A258259 A258260 A258261 * A258263 A258264 A258265 KEYWORD nonn AUTHOR Reinhard Zumkeller, Jun 13 2015 STATUS approved

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Last modified February 5 12:29 EST 2023. Contains 360084 sequences. (Running on oeis4.)