A075678 Number of fixed (orientation matters) polyominoids (shapes made of faces of cubes) with n squares.

3, 18, 158, 1611, 17811, 207395, 2505858, 31125711, 394982973, 5098498323, 66733261455, 883602795509, 11814191512434, 159283419280014, 2163058572006613

Offset

1,1

Links

Table of n, a(n) for n=1..15.

Jorge Luis Mireles Jasso, The Polyominoids (gives a(4) and a(6))

Crossrefs

Cf. A075679 (free), A056846.

18th row of A366767.

Sequence in context: A305824 A116956 A166887 * A341331 A089901 A375879

Adjacent sequences: A075675 A075676 A075677 * A075679 A075680 A075681

Keyword

hard,nonn,more

Author

Joseph Myers, Sep 24 2002

Extensions

a(13)-a(15) from John Mason, Mia Muessig, and Érika Roldán, Jul 04 2025

Status

approved