A114761 a(n) = (floor(sqrt(2)*10^n))^2.
1, 196, 19881, 1999396, 199996164, 19999899241, 1999998409369, 199999982358225, 19999999932878736, 1999999998944727844, 199999999979325598129, 19999999999912458800169, 1999999999999731161391129, 199999999999973116139112900, 19999999999999857198323561481
Offset: 0
Examples
a(1) = floor(2^(1/2)*10)^2 = 14^2 = 196.
Links
- G. C. Greubel, Table of n, a(n) for n = 0..495
Crossrefs
Cf. A114762.
Programs
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Mathematica
f[n_] := Floor[ Sqrt@2*10^n]^2; Table[ f[n], {n, 0, 12}] (* Robert G. Wilson v *)
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PARI
a(n) = sqrtint(2*100^n)^2; \\ G. C. Greubel, Jul 05 2017
Extensions
More terms from Robert G. Wilson v, Jan 03 2006
More terms from Joshua Zucker, May 05 2006