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A033914
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Numbers k such that s(k) + s(k+1) + ... + s(k+7) = t(k) + t(k+1) + ... + t(k+7).
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1
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34, 397, 1397, 1433, 1464, 2263, 3622, 3865, 5812, 7077, 10225, 27586, 291197, 313675, 458424, 477910, 566857, 585175, 1484279, 2831716, 7375819, 85175017, 97778116, 7790944015, 8083150857, 9521308617, 36133355554
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OFFSET
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1,1
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COMMENTS
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LINKS
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FORMULA
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Here s(k) = sigma(k) - k, t(k) = |s(k) - k|.
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PROG
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(PARI) l=vector(8, n, abs(sigma(n)-2*n)-sigma(n)+n); l[8]=0; sc=sum(n=1, 8, l[n]); for(n=8, 1000000, m=sigma(n)-2*n; d=abs(m)-m-n; i=(n-1)%8+1; sc=sc-l[i]+d; l[i]=d; if(sc==0, print1(n-7, ", "))) \\ C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 02 2005
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 02 2005
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STATUS
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approved
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