cp's OEIS Frontend

A254216 Number of length n 1..(6+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal.

%I A254216 #6 Jan 27 2015 18:07:20
%S A254216 4,8,32,96,373,1472,6490,28190,109811,428042,1877657,8933652,41803166,
%T A254216 184319728,792231146,3584762414,17422197427,85469221254,398370084189,
%U A254216 1733366825266,7251337491976,32000172689890,165843262226680,977297442443092,5688296579514244
%N A254216 Number of length n 1..(6+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal.
%e A254216 Some solutions for n=4:
%e A254216 ..6....6....4....1....4....4....8....1....8....6....6....8....1....6....8....4
%e A254216 ..4....4....5....5....8....2....4....7....2....8....2....2....3....4....2....5
%e A254216 ..6....2....1....4....4....4....2....2....8....2....7....6....4....2....8....7
%e A254216 ..8....8....8....6....8....8....8....6....4....8....1....4....8....6....6....8
%Y A254216 Column k=6 of A254218.
%K A254216 nonn
%O A254216 1,1
%A A254216 _R. H. Hardin_, Jan 26 2015
%E A254216 a(23)-a(25) from _Alois P. Heinz_, Jan 27 2015