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Search: id:A063969
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| 7, 60, 147, 407, 470, 1053, 1175, 3431, 3822, 5126, 5960, 6280, 6321, 6897, 7200, 8687, 9243, 10760, 12614, 15093, 16153, 18080, 18818, 19668, 20433, 20976, 24648, 26826, 30804, 44016, 45878, 46221, 47423, 55965, 58506, 58682, 59645, 63897
(list; graph; listen)
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OFFSET
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1,1
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PROGRAM
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(PARI) sopf(n, s, fac, i)=fac=factor(n); for(i=1, matsize(fac)[1], s=s+fac[i, 1]); return(s); j=[]; for(n=1, 100000, if(sopf(n)==sopf(n+3), j=concat(j, n))); j
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CROSSREFS
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Cf. A008472, A006145.
Sequence in context: A135150 A077409 A099347 this_sequence A015570 A024090 A043085
Adjacent sequences: A063966 A063967 A063968 this_sequence A063970 A063971 A063972
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KEYWORD
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nonn
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AUTHOR
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Jason Earls (jcearls(AT)cableone.net), Sep 05 2001
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