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A064029
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Numbers n such that sopfr(n) = ud(n), where sopfr = A001414 and ud(n) = A034444.
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0
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2, 5460, 9240, 253890, 358050, 387090, 395850, 429660, 440895, 458850, 468930, 475020, 529074, 550620, 574770, 629850, 669900, 755820, 788970
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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PROG
| (PARI) sopfr(n, s, fac, i) = fac=factor(n); for(i=1, matsize(fac)[1], s=s+fac[i, 1]*fac[i, 2]); return(s); ud(n) = 2^omega(n); for(n=1, 10^6, if(sopfr(n)==ud(n), print(n)))
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CROSSREFS
| Sequence in context: A203756 A153737 A078933 * A057645 A129060 A190127
Adjacent sequences: A064026 A064027 A064028 * A064030 A064031 A064032
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KEYWORD
| more,nonn
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AUTHOR
| Jason Earls (zevi_35711(AT)yahoo.com), Sep 12 2001
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