A250228 - OEIS

%I #5 Apr 21 2021 15:50:22

%S 8,88,248,2392,10640,120412,838604,8983896,78435176,789142896,

%T 7558414812,74218486628

%N Number of length n+1 0..7 arrays with the sum of the cubes of adjacent differences multiplied by some arrangement of +-1 equal to zero.

%C Column 7 of A250229.

%e Some solutions for n=6

%e ..2....7....2....1....6....3....7....6....0....0....2....4....4....6....1....6

%e ..1....0....5....4....2....1....4....5....2....1....3....5....3....4....1....5

%e ..2....7....5....3....4....4....3....6....5....2....0....6....0....5....4....6

%e ..5....6....0....5....7....7....7....2....5....6....3....6....1....0....1....4

%e ..2....7....5....3....5....4....4....1....5....1....1....6....4....5....6....0

%e ..1....4....2....6....1....2....2....5....3....5....2....0....6....7....1....3

%e ..2....7....2....5....4....5....7....4....6....6....6....6....4....6....1....6

%Y Cf. A250229.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 14 2014