A069436 - OEIS

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

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A069436

Half the number of 10 X n binary arrays with no path of adjacent 1's or adjacent 0's from top row to bottom row.

511, 516170, 514178822, 507006229578

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

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..4.

CROSSREFS

Cf. 2 X n A000079, n X 1 A000225, 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: A069384 A069410 A289475 * A217915 A263167 A139303

Adjacent sequences: A069433 A069434 A069435 * A069437 A069438 A069439

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 22 2002

STATUS

approved