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A292636
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Rank of (3-r)*n when all the numbers (3-r)*j and (3+r)*k, where r = sqrt(2), j>=1, k>=1, are jointly ranked.
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3
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1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 16, 17, 19, 20, 21, 23, 24, 25, 27, 28, 29, 31, 32, 33, 35, 36, 38, 39, 40, 42, 43, 44, 46, 47, 48, 50, 51, 53, 54, 55, 57, 58, 59, 61, 62, 63, 65, 66, 67, 69, 70, 72, 73, 74, 76, 77, 78, 80, 81, 82, 84, 85, 86, 88, 89
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OFFSET
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1,2
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COMMENTS
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LINKS
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MATHEMATICA
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z = 120; r = 3 - Sqrt[2]; s = 3 + Sqrt[2];
Table[n + Floor[n*r/s], {n, 1, z}] (* A292636 *)
Table[n + Floor[n*s/r], {n, 1, z}] (* A292637 *)
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PROG
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(PARI) vector(100, n, n + floor(n*(3-sqrt(2))/(3+sqrt(2)))) \\ G. C. Greubel, Aug 20 2018
(Magma) [n + Floor(n*(3-Sqrt(2))/(3+Sqrt(2))): n in [1..100]]; // G. C. Greubel, Aug 20 2018
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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