4879497
domain: N
Appears in sequences
- Number of polyominoes with width and height equal to n that are invariant under all symmetries of the square.at n=12A268339
- Number of polyominoes with width and height equal to n that are invariant under all symmetries of the square.at n=13A268339
- Number of polyominoes with width and height equal to 2n that are invariant under all symmetries of the square.at n=6A268758