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A254208
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Number of length 5 1..(n+2) arrays with no leading or trailing partial sum equal to a prime
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1
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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
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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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
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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