A189793 n+[nr/t]+[ns/t]; r=1, s=(sin(1))^2, t=(cos(1))^2.

6, 12, 20, 26, 34, 40, 46, 54, 60, 68, 74, 82, 88, 94, 102, 108, 116, 122, 130, 136, 142, 150, 156, 164, 170, 178, 184, 190, 198, 204, 212, 218, 226, 232, 238, 246, 252, 260, 266, 274, 280, 286, 294, 300, 308, 314, 320, 328, 334, 342, 348, 356, 362, 368, 376, 382, 390, 396, 404, 410, 416, 424, 430, 438, 444, 452, 458, 464, 472, 478, 486, 492, 500, 506, 512, 520, 526

Offset

1,1

Comments

See A189792.

Links

Table of n, a(n) for n=1..77.

Formula

c(n)=n+[n*u^2]+[n*v^2], where u=sec(1), v=tan(1).

Mathematica

(See A189792.)

Crossrefs

Cf. A189792, A189794.

Sequence in context: A145278 A094371 A286927 * A356141 A079760 A109895

Adjacent sequences: A189790 A189791 A189792 * A189794 A189795 A189796

Keyword

nonn

Author

Clark Kimberling, Apr 27 2011

Status

approved