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A170882 First differences of "corner" sequence associated with A161644 and A161645. 2


%S 0,1,2,4,5,5,7,11,11,7,7,13,19,19,19,25,23,11,7,13,19,21,25,37,45,35,

%T 23,31,49,53,51,59,49,19,7,13,19,21,25,37,45,37,29,41,65,77,77,89,97,

%U 67,31,31,49,59,69,97,125,111,75,79,119,135,129,135,103,35,7

%N First differences of "corner" sequence associated with A161644 and A161645.

%H David Applegate and N. J. A. Sloane, <a href="/A170882/b170882.txt">Table of n, a(n) for n = 0..1000</a>

%H David Applegate, Omar E. Pol and N. J. A. Sloane, <a href="/A000695/a000695_1.pdf">The Toothpick Sequence and Other Sequences from Cellular Automata</a>, 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.]

%H N. J. A. Sloane, <a href="/wiki/Catalog_of_Toothpick_and_CA_Sequences_in_OEIS">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a>

%H David Applegate, <a href="/A139250/a139250.anim.html">The movie version of A139250, etc.</a> [See A161644, corner version.]

%Y Cf. A139250, A161644, A161645, A170883.

%K nonn

%O 0,3

%A _David Applegate_ and _N. J. A. Sloane_, Jan 08 2010

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Last modified June 24 21:50 EDT 2021. Contains 345433 sequences. (Running on oeis4.)