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 A239587 Cubes that are cyclops numbers. 6
 0, 74088, 1520875, 1560896, 1860867, 2460375, 4330747, 4410944, 7880599, 123505992, 144703125, 172808693, 177504328, 179406144, 191102976, 194104539, 211708736, 232608375, 241804367, 264609288, 288804781, 295408296, 335702375, 338608873, 368601813, 374805361 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Intersection of A000578 (Cubes) and A134808 (Cyclops numbers). LINKS Colin Barker, Table of n, a(n) for n = 1..1800 FORMULA a(n) = A239590(n)^3. PROG (PARI) is_cyclops(k) = { if(k==0, return(1)); my(d=digits(k), j); if(#d%2==0 || d[#d\2+1]!=0, return(0)); for(j=1, #d\2, if(d[j]==0, return(0))); for(j=#d\2+2, #d, if(d[j]==0, return(0))); return(1)} s=[]; for(n=0, 2000, if(is_cyclops(n^3), s=concat(s, n^3))); s CROSSREFS Cf. A000578, A134808, A160711, A239588, A239589, A239590, A239591. Sequence in context: A172703 A256731 A186835 * A122065 A079543 A033450 Adjacent sequences: A239584 A239585 A239586 * A239588 A239589 A239590 KEYWORD nonn,base AUTHOR Colin Barker, Mar 24 2014 STATUS approved

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Last modified August 12 23:59 EDT 2024. Contains 375113 sequences. (Running on oeis4.)