cp's OEIS Frontend

A254545 Number of length 7 1..(n+2) arrays with no leading partial sum equal to a prime.

%I A254545 #6 Jul 23 2025 14:47:46
%S A254545 11,329,1466,13503,29038,121774,297210,758766,1313695,3093457,4829568,
%T A254545 9589613,16150714,27683578,39103727,66543164,90003312,142167902,
%U A254545 204453789,297719303,382646786,565510545,762020095,1058506627,1394748594
%N A254545 Number of length 7 1..(n+2) arrays with no leading partial sum equal to a prime.
%C A254545 Row 7 of A254539
%H A254545 R. H. Hardin, <a href="/A254545/b254545.txt">Table of n, a(n) for n = 1..210</a>
%e A254545 Some solutions for n=4
%e A254545 ..4....6....4....1....4....4....6....1....6....4....6....4....4....4....4....1
%e A254545 ..2....6....6....5....4....2....3....5....2....6....4....4....4....2....5....5
%e A254545 ..6....2....6....6....4....2....5....2....2....2....4....1....6....6....1....3
%e A254545 ..2....4....4....3....3....4....1....2....2....6....6....3....6....3....5....3
%e A254545 ..1....2....5....3....1....6....3....6....6....4....6....6....5....5....3....2
%e A254545 ..5....4....5....2....6....3....2....6....6....2....2....3....3....6....3....2
%e A254545 ..6....2....5....6....5....3....5....4....2....4....5....5....5....2....3....2
%K A254545 nonn
%O A254545 1,1
%A A254545 _R. H. Hardin_, Feb 01 2015