A321589 Number of tilings of a 6 X n rectangle using pentominoes of shapes X, Y, T and dominoes.

1, 1, 13, 83, 1103, 11453, 127320, 1388914, 15330926, 167842605, 1845273115, 20252779428, 222470481108, 2442643290488, 26825729083460, 294573090471640, 3234887436123961, 35523266398630041, 390097222479871444, 4283805079495347243, 47042252237178793997

Offset

0,3

Links

Alois P. Heinz, Table of n, a(n) for n = 0..962

Wikipedia, Pentomino

Crossrefs

Cf. A286347.

Sequence in context: A163688 A274398 A301953 * A225129 A297207 A222491

Adjacent sequences: A321586 A321587 A321588 * A321590 A321591 A321592

Keyword

nonn

Author

Alois P. Heinz, Nov 13 2018

Status

approved