A244196 Cumulative angle at the center of successive numbered sectors of a standard competition dartboard, with numbers traversed in order.

288, 414, 450, 684, 972, 1080, 1206, 1242, 1296, 1458, 1620, 1674, 1782, 1998, 2196, 2304, 2592, 2826, 2988, 3150

Offset

1,1

Comments

A standard dartboard is divided into 20 sectors each subtending an angle of 18 degrees.

The sequence is generated by considering the positive X-axis to be running through the center of the sector numbered "6" and defining this to be 0 degrees. A line collinear with X is then rotated clockwise until each numbered sector is traversed through the center of the sector in question. The total number of degrees is summed as each sector is traversed.

Links

Table of n, a(n) for n=1..20.

Wikipedia, Darts

Crossrefs

Cf. A003833, A008575, A244512.

Sequence in context: A287116 A345553 A345807 * A280515 A061831 A250774

Adjacent sequences: A244193 A244194 A244195 * A244197 A244198 A244199

Keyword

nonn,fini,full

Author

Philip Mizzi, Jul 21 2014

Status

approved