The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A207736 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically 1
 2, 16, 114, 1849, 86355, 9259849, 2215586241, 1207251562500, 1504250577851460, 4240840118917220289, 26956572348445823078057, 387211891430119861291459849, 12581321412478916326490284012715, 923581786817019708657060682986420624 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A207741 LINKS R. H. Hardin, Table of n, a(n) for n = 1..18 EXAMPLE Some solutions for n=4 ..1..0..0..1....1..1..0..1....0..1..1..0....1..1..0..1....1..1..1..0 ..1..0..1..1....0..0..1..1....0..1..1..1....0..1..1..1....1..0..1..1 ..0..0..1..1....1..1..1..1....0..0..1..1....1..0..0..1....1..1..0..0 ..1..0..0..1....1..0..1..1....0..1..1..0....0..1..1..1....1..1..1..1 CROSSREFS Sequence in context: A125725 A288965 A207420 * A208364 A207711 A162723 Adjacent sequences:  A207733 A207734 A207735 * A207737 A207738 A207739 KEYWORD nonn AUTHOR R. H. Hardin Feb 19 2012 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified April 17 07:52 EDT 2021. Contains 343060 sequences. (Running on oeis4.)