A254540 Number of length 2 1..(n+2) arrays with no leading partial sum equal to a prime

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

R. H. Hardin, Table of n, a(n) for n = 1..210

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

Adjacent sequences: A254537 A254538 A254539 * A254541 A254542 A254543

Keyword

nonn

Author

R. H. Hardin, Feb 01 2015

Status

approved