

A082915


Numbers n for which the first difference sequence of A054040 decreases.


1



27, 53, 179, 305, 431, 557, 683, 809, 835, 935, 961, 1087, 1213, 1339, 1465, 1591, 1717, 1743, 1843, 1869, 1995, 2121, 2247, 2373, 2499, 2525, 2625, 2651, 2777, 2903, 3029, 3155, 3281, 3407, 3433, 3533, 3559, 3685, 3811, 3937, 4063, 4189, 4215, 4315
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OFFSET

1,1


COMMENTS

Same as asking when the second difference of A054040 is 1.


LINKS

Table of n, a(n) for n=1..44.


EXAMPLE

A054040(27)A054040(26) = 13 while A054040(26)A054040(25) = 14, therefore the first entry is 27.


MATHEMATICA

k = s = a = b = c = 0; Do[m = n; While[s < n, k++; s = N[s + 1/Sqrt[k], 50]]; a = b; b = c; c = k; If[2b  a > c, Print[n]], {n, 1, 4400}]


CROSSREFS

Cf. A054040.
Sequence in context: A160845 A216224 A255364 * A183032 A040702 A043323
Adjacent sequences: A082912 A082913 A082914 * A082916 A082917 A082918


KEYWORD

nonn


AUTHOR

Robert G. Wilson v, Apr 14 2003


STATUS

approved



