A069387 Number of n X 12 binary arrays with a path of adjacent 1's from top row to bottom row.

4095, 16245775, 60131384705, 210502738714097, 714097521397778495, 2380826437768134741023, 7862987107940658832635809, 25834416752721407468468718385, 84641600245355780352751022513463, 276889755885138056467643815501003447, 905061607197623234620822097612564300097

Offset

1,1

Links

Sean A. Irvine, Table of n, a(n) for n = 1..100

Crossrefs

Cf. 1 X n A000225, 2 X n A005061, n X 2 A001333, 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: A321551 A161004 A022194 * A359085 A069413 A069439

Adjacent sequences: A069384 A069385 A069386 * A069388 A069389 A069390

Keyword

nonn

Author

R. H. Hardin, Mar 22 2002

Extensions

More terms from Sean A. Irvine, Apr 30 2024

Status

approved