A069402 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A069402

Half the number of 9 X n binary arrays with a path of adjacent 1's and a path of adjacent 0's from top row to bottom row.

0

1, 8361, 22372413, 34777826197

(list; graph; refs; listen; history; text; internal format)

OFFSET

2,2

LINKS

Table of n, a(n) for n=2..5.

CROSSREFS

Cf. 1 X n A000225, 2 X n A016269, vertical path of 1 A069361-A069395, vertical paths of 0+1 A069396-A069416, vertical path of 1 not 0 A069417-A069428, no vertical paths A069429-A069447, no horizontal or vertical paths A069448-A069452.

Sequence in context: A224465 A049357 A031947 * A202588 A337959 A139005

Adjacent sequences: A069399 A069400 A069401 * A069403 A069404 A069405

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 22 2002

STATUS

approved