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A236312
a(n) = floor((n + e)^2), where e is the natural logarithm base.
1
7, 13, 22, 32, 45, 59, 76, 94, 114, 137, 161, 188, 216, 247, 279, 313, 350, 388, 429, 471, 516, 562, 610, 661, 713, 768, 824, 883, 943, 1006, 1070, 1136, 1205, 1275, 1348, 1422, 1499, 1577, 1657, 1740, 1824, 1911, 1999, 2090, 2182, 2277, 2373, 2471, 2572, 2674, 2779
OFFSET
0,1
EXAMPLE
a(0) = 7 because e^2 = 7.389056...
a(1) = 13 because (e + 1)^2 = 13.82561975584874...
a(2) = 22 because (e + 2)^2 = 22.2621834127668...
MATHEMATICA
Table[Floor[(n + E)^2], {n, 0, 49}] (* Alonso del Arte, Jan 23 2014 *)
PROG
(Python)
import math
for n in range(99): print(str(int((n+math.e)**2)), end=", ")
(PARI) list(maxx)={n=0; ptr=0; while(n<maxx, q=floor((n+exp(1))^2);
ptr++; print(ptr, " ", q); n++); } \\ Bill McEachen, Feb 02 2014
CROSSREFS
Sequence in context: A335277 A034102 A034112 * A301691 A163676 A273605
KEYWORD
nonn
AUTHOR
Alex Ratushnyak, Jan 21 2014
STATUS
approved