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A293412 Greatest integer k such that k/n^2 < e. 3
0, 2, 10, 24, 43, 67, 97, 133, 173, 220, 271, 328, 391, 459, 532, 611, 695, 785, 880, 981, 1087, 1198, 1315, 1437, 1565, 1698, 1837, 1981, 2131, 2286, 2446, 2612, 2783, 2960, 3142, 3329, 3522, 3721, 3925, 4134, 4349, 4569, 4795, 5026, 5262, 5504, 5751, 6004 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Clark Kimberling, Table of n, a(n) for n = 0..1000

FORMULA

a(n) = floor(e*n^2).

a(n) = A293413(n) - 1 for n > 0.

MATHEMATICA

z = 120; r = E;

Table[Floor[r*n^2], {n, 0, z}];   (* A293412 *)

Table[Ceiling[r*n^2], {n, 0, z}]; (* A293413 *)

Table[Round[r*n^2], {n, 0, z}];   (* A293414 *)

CROSSREFS

Cf. A001113, A293413, A293414.

Sequence in context: A316451 A120845 A330280 * A224837 A049450 A092906

Adjacent sequences:  A293409 A293410 A293411 * A293413 A293414 A293415

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Oct 12 2017

STATUS

approved

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Last modified August 2 18:40 EDT 2021. Contains 346428 sequences. (Running on oeis4.)