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A302639
Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
32, 42, 82, 248, 719, 2262, 6460, 19799, 59002, 179668, 535412, 1618765, 4863776, 14679083, 44118667, 132955659, 400197277, 1205668487, 3629343498, 10930567358, 32912798461, 99120195646, 298461584492, 898783501386, 2706487328339
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 6 of A302635.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
R. H. Hardin, Empirical recurrence of order 81
FORMULA
Empirical recurrence of order 81 (see link above)
EXAMPLE
Some solutions for n=5
..0..1..0..0..1. .0..1..1..0..1. .0..1..0..1..0. .0..1..0..0..1
..0..1..0..1..0. .1..0..1..0..1. .1..1..0..0..0. .1..1..0..1..0
..0..1..0..1..0. .1..0..1..0..0. .0..1..0..1..0. .0..1..0..1..0
..0..1..0..1..0. .1..0..1..0..1. .0..1..0..1..0. .0..1..0..1..0
..0..1..0..1..0. .1..0..1..1..1. .0..1..1..1..0. .0..1..0..1..0
..0..0..1..1..0. .1..0..1..0..1. .0..1..0..1..0. .0..1..0..0..1
CROSSREFS
Cf. A302635.
Sequence in context: A114042 A302168 A104390 * A302431 A303201 A302314
Adjacent sequences: A302636 A302637 A302638 * A302640 A302641 A302642
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 10 2018
STATUS
approved

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Last modified October 3 22:05 EDT 2024. Contains 376494 sequences.
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