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A254540
Number of length 2 1..(n+2) arrays with no leading partial sum equal to a prime
1
1, 3, 5, 10, 11, 20, 28, 37, 41, 54, 58, 75, 91, 109, 116, 139, 146, 172, 196, 221, 230, 262, 290, 324, 355, 390, 404, 445, 458, 499, 539, 583, 626, 674, 690, 739, 787, 839, 859, 917, 937, 996, 1052, 1113, 1136, 1205, 1267, 1337, 1402, 1470, 1496, 1572, 1639, 1716
OFFSET
1,2
COMMENTS
Row 2 of A254539
LINKS
EXAMPLE
All solutions for n=4
..4....1....6....4....1....6....6....6....4....4
..6....3....6....5....5....2....3....4....2....4
CROSSREFS
Sequence in context: A113858 A101130 A191513 * A326419 A102309 A067230
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 01 2015
STATUS
approved