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Search: id:A067110
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| A067110 |
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Floor[ concatenation of first n primes / sum of first n primes]. |
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+0
1
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| 1, 4, 23, 138, 8418, 574905, 40639850, 3061183528, 235711131719, 18272180753428, 1473194573245205, 119650320669661386, 9903829063833316444, 838829650246380538698, 71863149914400283955531
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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a(4) = floor[2357/17] =floor[138.647058823529411764705882352941] = 138.
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MATHEMATICA
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f[n_] := (a = {}; k = 1; While[ k < n + 1, a = Join[a, IntegerDigits[ Prime[k]]]; k++ ]; FromDigits[a]); Table[ Floor[ f[n]/Sum[ Prime[i], {i, 1, n} ]], {n, 1, 20} ]
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CROSSREFS
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Sequence in context: A024050 A038723 A091640 this_sequence A158197 A038736 A091642
Adjacent sequences: A067107 A067108 A067109 this_sequence A067111 A067112 A067113
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KEYWORD
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easy,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jan 08 2002
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 08 2002
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