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A274088
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a(n) = nearest integer to n^2 * sin(sqrt(n)).
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12
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0, 1, 4, 9, 15, 20, 23, 23, 20, 11, -2, -21, -46, -76, -111, -150, -194, -240, -289, -339, -389, -437, -484, -527, -566, -599, -626, -645, -656, -658, -649, -630, -600, -559, -505, -440, -362, -273, -171, -58, 66, 201, 346, 501, 664, 835, 1013, 1197, 1385, 1577, 1772, 1968, 2164, 2359, 2551, 2740
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OFFSET
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0,3
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LINKS
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MAPLE
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Digits:=50: f:=n->round(evalf(n^2*sin(sqrt(n)))); [seq(f(n), n=0..120)];
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MATHEMATICA
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Table[Round[n^2 * Sin[Sqrt[n]]], {n, 0, 50}] (* G. C. Greubel, Jun 10 2016 *)
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PROG
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(Python)
from sympy import sin, sqrt
return int((n**2*sin(sqrt(n))).round()) # Chai Wah Wu, Jun 10 2016
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CROSSREFS
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Sequences of the same type: A272695, A274086, A274087, A274088, A274090, A274091, A274092, A274095, A274096, A274097, A274101, A274102.
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KEYWORD
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AUTHOR
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STATUS
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approved
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