A134906 a(n) = ceiling(n*exp(-tan(n))).

1, 18, 4, 2, 147, 9, 3, 7181, 15, 6, 1481148085628412373142705746959543003289563510386989143402672337886302490562710486232930994662688988, 23, 9, 1, 36, 12, 1, 57, 17, 3, 97, 22, 5, 203, 29, 8

Offset: 1

Author

Mohammad K. Azarian, Nov 14 2007

Keywords

• nonn
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A134890, A134891, A134892, A134902, A134903, A134904, A134905.

Programs

Mathematica

Table[Ceiling[n Exp[-Tan[n]]], {n, 30}] (* Vincenzo Librandi, Feb 18 2013 *)

Extensions

Offset corrected by Mohammad K. Azarian, Nov 19 2008

a(11) corrected by Vincenzo Librandi, Feb 18 2013