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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. 2
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 (list; graph; refs; listen; history; text; internal format)
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 2012; see section 14. - Jonathan Sondow, Aug 24 2012

CROSSREFS

Cf. A042944-A042946, A045679, A189226.

Sequence in context: A312857 A312858 A312859 * A292226 A225870 A171920

Adjacent sequences:  A045670 A045671 A045672 * A045674 A045675 A045676

KEYWORD

nonn

AUTHOR

Allan Wilks

STATUS

approved

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Last modified March 25 15:02 EDT 2019. Contains 321470 sequences. (Running on oeis4.)