A236312 a(n) = floor((n + e)^2), where e is the natural logarithm base.

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

Author

Alex Ratushnyak, Jan 21 2014

Keywords

• nonn

Examples

			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...
		

Crossrefs

Cf. A001113, A235361.

Programs

Mathematica

Table[Floor[(n + E)^2], {n, 0, 49}] (* Alonso del Arte, Jan 23 2014 *)

PARI

list(maxx)={n=0;ptr=0;while(nBill McEachen, Feb 02 2014

Python

import math
for n in range(99): print(str(int((n+math.e)**2)), end=",")