A045673 Curvatures in diagram constructed by inscribing 2 circles of curvature 0 and 1 inside circle of curvature 0, continuing indefinitely to inscribe circles wherever possible.

0, 1, 4, 9, 12, 16, 24, 25, 28, 33, 36, 40, 49, 52, 57, 60, 64, 72, 73, 76, 81, 84, 88, 96, 97, 100, 105, 108, 112, 121, 124, 129, 136, 144, 145, 148, 153, 156, 160, 168, 169, 172, 177, 180, 184, 192, 193, 196, 201, 204, 216, 217, 220, 225, 228, 232

Offset

0,3

Comments

Appears to be a superset of {A008784 - 1}. - Ralf Stephan, Jan 26 2005

See A189226 for additional comments, references, links, examples, and crossrefs. - Jonathan Sondow, Aug 24 2012

Links

Table of n, a(n) for n=0..55.

K. E. Stange, The sensual Apollonian circle packing, arXiv:1208.4836 [math.NT], 2012-2014; see section 14. - Jonathan Sondow, Aug 24 2012

Crossrefs

Cf. A042944-A042946, A045679, A189226.

Sequence in context: A312858 A312859 A362401 * A292226 A225870 A171920

Adjacent sequences: A045670 A045671 A045672 * A045674 A045675 A045676

Keyword

nonn

Author

Allan Wilks

Status

approved