A255717 Number of length 2 1..(n+2) arrays with no leading partial sum equal to a prime and no consecutive values equal

1, 2, 4, 8, 9, 17, 24, 32, 36, 48, 52, 68, 83, 100, 107, 129, 136, 161, 184, 208, 217, 248, 275, 308, 338, 372, 386, 426, 439, 479, 518, 561, 603, 650, 666, 714, 761, 812, 832, 889, 909, 967, 1022, 1082, 1105, 1173, 1234, 1303, 1367, 1434, 1460, 1535, 1601, 1677

Offset

1,2

Comments

Row 2 of A255716

Links

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

Example

All solutions for n=4
..4....6....6....1....4....1....4....6
..6....3....2....3....5....5....2....4

Crossrefs

Cf. A255716

Sequence in context: A276773 A294441 A246347 * A354973 A177404 A046685

Adjacent sequences: A255714 A255715 A255716 * A255718 A255719 A255720

Keyword

nonn

Author

R. H. Hardin, Mar 03 2015

Status

approved