A222040 Number of binary arrays indicating the locations of trailing edge maxima of a random length-n 0..5 array extended with zeros and convolved with -1,2,-1.

2, 4, 8, 15, 27, 47, 80, 133, 219, 358, 583, 947, 1536, 2489, 4031, 6526, 10563, 17095, 27664, 44765, 72435, 117206, 189647, 306859, 496512, 803377, 1299895, 2103278, 3403179, 5506463, 8909648, 14416117, 23325771, 37741894, 61067671, 98809571

Offset

1,1

Comments

Column 5 of A222043.

Links

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

Example

Some solutions for n=7, one extended zero followed by filtered positions
..1....1....1....1....0....0....1....1....1....1....1....1....0....0....1....1
..0....0....0....0....0....1....0....0....0....0....0....0....1....0....0....0
..0....0....1....1....0....0....0....1....0....0....1....0....0....0....1....0
..1....1....0....0....0....1....0....0....1....0....0....0....1....1....0....1
..0....0....1....0....1....0....1....0....0....0....1....0....0....0....1....0
..0....0....0....1....0....0....0....0....1....0....0....0....1....0....0....0
..0....0....1....0....0....0....0....0....0....1....0....0....0....1....0....0
..0....1....0....1....0....1....0....0....0....0....0....0....0....0....0....0
..0....0....1....0....1....0....1....1....1....0....0....1....0....0....1....1
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0

Crossrefs

Cf. A222043.

Sequence in context: A001523 A222039 A222148 * A222149 A222041 A222042

Adjacent sequences: A222037 A222038 A222039 * A222041 A222042 A222043

Keyword

nonn

Author

R. H. Hardin, Feb 06 2013

Status

approved