A095968 - cp's OEIS frontend

A095968 Number of tilings of an n X n section of the square lattice with "ribbon tiles". A ribbon tile is a polyomino which has at most one square on each diagonal running from northwest to southeast.

n	a(n)
0	1
1	1
2	9
3	576
4	254016
5	768398400
6	15933509222400
7	2264613732270489600
8	2206116494952210583142400
9	14730363379319627387434460774400
10	674138394386323094302100270094090240000
11	211463408638810917171920642017084851413975040000

[1, 1, 9, 576, 254016, 768398400, 15933509222400, 2264613732270489600, 2206116494952210583142400, 14730363379319627387434460774400, 674138394386323094302100270094090240000, 211463408638810917171920642017084851413975040000]

cp's OEIS Frontend

A095968 Number of tilings of an n X n section of the square lattice with "ribbon tiles". A ribbon tile is a polyomino which has at most one square on each diagonal running from northwest to southeast.

Table of values

List of values