A342278 - OEIS

%I #13 Mar 14 2021 20:36:07

%S 4,6,4,0,8,16,0,-16,0,20,20,4,4,24,-8,-48,-16,20,20,8,16,48,32,-36,

%T -44,24,60,20,0,32,-36,-116,-48,20,20,8,16,48,32,-32,-32,40,80,48,16,

%U 56,32,-116,-140,-8,60,36,40,112,112,-48,-136,0,132,64,-12,28,-108,-256,-112,20,20,8,16,48,32

%N First differences of A342274.

%C It would be nice to have a formula or recurrence for any of A170899, A342272-A342278, or any nontrivial relation between them. This might help to understand the fractal structure of the mysterious hexagonal Ulam-Warburton cellular automaton A151723.

%H N. J. A. Sloane, <a href="/A342278/b342278.txt">Table of n, a(n) for n = 0..254</a>

%Y Cf. A151723, A342274.

%K sign

%O 0,1

%A _N. J. A. Sloane_, Mar 14 2021