A254221 - OEIS

%I #4 Jan 26 2015 21:04:17

%S 0,2,4,22,24,96,168,388,490,1024,1168,2138,3000,4554,5084,7872,8570,

%T 12358,15532,20538,22120,30338,35972,45928,54068,66830,71348,90658,

%U 95374,115162,132074,156726,177542,212556,221796,258292,289706,334554,349466

%N Number of length 4 1..(n+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal

%C Row 4 of A254218

%H R. H. Hardin, <a href="/A254221/b254221.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..6....6....1....4....4....4....4....6....1....6....1....1....1....4....6....4

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

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

%e ..1....4....1....4....6....6....6....4....4....4....6....6....1....1....4....4

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 26 2015