A364794 Number of distinct binary arrays of size n X n with respect to isometric transformations.
1, 2, 6, 86, 7626, 3956996, 8326366368, 69277957195904, 2287898999182608384, 301053169143557925650432, 158147142250171927345054089216, 331982638848895606930198405868158976, 2786232352655643085145552249123037486514176
Offset: 0
Examples
For n = 2, the a(2) = 6 distinct binary arrays are OO XO XX XO XX XX OO OO OO OX XO XX For n = 4 OOXX OOXO OXXO is considered equivalent to XXXX OOXO OOOX OOXO OOOO because we can rotate the bounding box of the Xs 90 degrees clockwise and place it back into the array as given above.