A195853 Decimal expansion of the lower limit of A139250(i)/i^2.

4, 5, 1, 3, 0, 5, 8, 2, 8, 4, 5, 3, 1, 2, 2, 1, 3, 5, 8, 9, 6, 4, 0, 1, 3, 4, 2, 2, 8, 0, 4, 0, 0, 1, 2, 3, 5, 1, 0, 2, 0, 4, 1, 3, 8, 3, 2, 9

Offset: 0

Author

Omar E. Pol, Sep 27 2011

Keywords

• nonn
• cons
• hard
• more

Comments

Constant mentioned in the Applegate-Pol-Sloane article, Section 5, the fractal-like structure. It is also mentioned in A139250 and A170927.

Note that at least there are 162 constants starting with 0.451305 in the Plouffe's Inverter.

Also evidently half the lower limit of A147562(n)/n^2; see A260239. - Steven Finch, Jul 21 2015

Examples

			0.451305...
		

References

• D. Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata, Congressus Numerantium, Vol. 206 (2010), 157-191

Links

• David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata, Congressus Numerantium, Vol. 206 (2010), 157-191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n-1)-1) for n >= 2.], which is also available at arXiv:1004.3036v2, [math.CO], 2010.
• Steven R. Finch, Toothpicks and Live Cells, July 21, 2015. [Cached copy, with permission of the author]
• N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

Crossrefs

Cf. A139250, A170927, A147562, A260239.

Extensions

a(6)-a(14) from Robert Price, Aug 18 2012

a(15)-a(47) from Robert Price, Aug 16 2015

Removed first fifteen terms as they were duplicated in the last edit by Robert Price, Dec 17 2018