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Search: id:A119520
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| A119520 |
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The first 10 digits of the fifth root of n contain the digits 0-9. |
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+0
1
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| 911, 1974, 2326, 6236, 8346, 8403, 9301, 15317, 17412, 17601, 20512, 21914, 22211, 23513, 25510, 26192, 31591, 32432, 36947, 39194, 39783, 40414, 43141, 47511, 49116, 49606, 51014, 52604, 57547, 57753, 61087, 64023, 64747, 64913, 64949
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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We could call this sequence the "sequence of terror" since it begins on 911.
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EXAMPLE
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n=911. n^(1/5) = 3.907542186..., so 911 the first entry.
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PROGRAM
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(PARI) \The the first 10 digits of i-th root of x contain all of the digits 0-9. rootdigits(n, i) = { local(f, x, y, a, d, s); for(x=2, n, f=[0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; s=0; y=(x^(1/i))*10^9; a=Vec(Str(y)); for(d=1, 10, k=eval(a[d]); if(k==0, k=10); f[k]=1; ); for(j=1, 10, s+=f[j]); if(s==10, print1(x", ")); ) }
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CROSSREFS
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Sequence in context: A002617 A015278 A068261 this_sequence A145646 A093634 A074887
Adjacent sequences: A119517 A119518 A119519 this_sequence A119521 A119522 A119523
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KEYWORD
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base,easy,nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), May 27 2006
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