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A169688
A169648(4n+4) - A147582(4n+5).
3
0, 4, 24, 16, 96, 16, 80, 48, 336, 16, 80, 48, 304, 48, 240, 144, 1104, 16, 80, 48, 304, 48, 240, 144, 1040, 48, 240, 144, 912, 144, 720, 432, 3504, 16, 80, 48, 304, 48, 240, 144, 1040, 48, 240, 144, 912, 144, 720, 432, 3376, 48, 240, 144, 912, 144, 720, 432, 3120, 144, 720
OFFSET
-1,2
COMMENTS
A169648 and A147582 agree except at these terms.
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.]
FORMULA
For recurrence see A169689.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 14 2010
STATUS
approved