

A160796


Total number of "ON" cells at nth stage in simple 2dimensional cellular automaton which is the "corner" structure corresponding to A160118.


5



0, 1, 8, 11, 32, 35, 56, 65, 128, 131, 152, 161, 224, 233, 296, 323, 512, 515, 536, 545, 608, 617, 680, 707, 896, 905, 968, 995, 1184, 1211, 1400, 1481, 2048, 2051, 2072, 2081, 2144, 2153, 2216, 2243, 2432, 2441, 2504, 2531, 2720, 2747, 2936
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OFFSET

0,3


COMMENTS

This bears the same relationship to A160118 as A153006 does to A139250.


LINKS

Table of n, a(n) for n=0..46.


FORMULA

a(n) = 2 + (3/4)*(A160118(n)  1) if n >= 2.


EXAMPLE

If we label the generations of cells turned ON by consecutive numbers we get the cell pattern shown below:
..9...............9
...888.888.888.888.
...878.878.878.878.
...8866688.8866688.
.....656.....656...
...8866444.4446688.
...878.434.434.878.
...888.4422244.888.
.........212.......
00000000002244.888.
0000000000.434.878.
0000000000.4446688.
0000000000...656...
0000000000.8866688.
0000000000.878.878.
0000000000.888.888.
0000000000........9
0000000000.........
0000000000.........


CROSSREFS

Cf. A153006, A160797, A160798, A160412, A160118, A160416.
Sequence in context: A029615 A051791 A243975 * A160416 A056873 A303883
Adjacent sequences: A160793 A160794 A160795 * A160797 A160798 A160799


KEYWORD

nonn


AUTHOR

Omar E. Pol, Jun 13 2009, Jun 14 2009


EXTENSIONS

Entry revised by Omar E. Pol and N. J. A. Sloane, Feb 16 2010
More terms from Nathaniel Johnston, Nov 13 2010
Corrected by Sean A. Irvine, Mar 23 2011, in response to correction to A160118


STATUS

approved



