[go: up one dir, main page]

login
A254208
Number of length 5 1..(n+2) arrays with no leading or trailing partial sum equal to a prime
1
1, 11, 21, 176, 204, 898, 1653, 4078, 5075, 11512, 13456, 25925, 37275, 60717, 69689, 114352, 127928, 195039, 251161, 349001, 385157, 552907, 667293, 892038, 1075280, 1385235, 1510110, 2006079, 2156703, 2694466, 3157069, 3885393, 4484057, 5564130
OFFSET
1,2
COMMENTS
Row 5 of A254204
LINKS
EXAMPLE
Some solutions for n=4
..6....4....4....4....4....6....6....6....4....1....4....4....1....4....4....4
..3....2....6....2....5....3....6....4....6....5....5....6....5....2....6....2
..6....4....4....4....3....3....6....5....5....6....6....6....4....4....6....2
..5....5....2....4....6....2....6....5....6....6....3....6....2....4....5....6
..4....1....4....6....6....4....6....4....4....4....6....6....4....4....1....6
CROSSREFS
Sequence in context: A321509 A034922 A015446 * A083177 A110466 A110383
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2015
STATUS
approved