A255710 - OEIS

%I #5 Mar 03 2015 12:14:50

%S 2,2,4,6,8,14,19,33,69,162,325,616,1314,2874,6099,11780,21630,42778,

%T 95379,225424,532771,1184433,2434239,4904932,10213447,21612164,

%U 44580230,89065496,178617292,373380471,821875838,1887456086,4465488647

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

%C Column 2 of A255716

%H R. H. Hardin, <a href="/A255710/b255710.txt">Table of n, a(n) for n = 1..210</a>

%e All solutions for n=4

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

%e ..3....2....3....3....3....2

%e ..2....4....4....4....2....3

%e ..3....2....1....2....4....1

%Y Cf. A255716

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 03 2015