A374154 Number of domino tilings of the order n Aztec diamond which are diagonally and antidiagonally symmetric.

1, 2, 4, 10, 28, 96, 384, 1848, 10432, 70560, 564224, 5386080, 60854272, 819624960, 13101957120, 249339936384, 5633840513024, 151451482710528, 4840108771508224, 183921553065828864, 8309623533172948992, 446255646520644280320, 28513906167839010586624

Offset

0,2

Links

Ludovic Schwob, Table of n, a(n) for n = 0..25

Yi-Lin Lee, Off-diagonally symmetric domino tilings of the Aztec diamond, arXiv:2303.02750 [math.CO], 2023.

Ludovic Schwob, Python Program

Prog

(Python) # See Links - Ludovic Schwob, Jan 20 2026

Crossrefs

Cf. A006125, A005163, A372145, A374153.

Sequence in context: A188496 A369079 A191501 * A085549 A374174 A022492

Adjacent sequences: A374151 A374152 A374153 * A374155 A374156 A374157

Keyword

nonn

Author

Ludovic Schwob, Jun 29 2024

Extensions

More terms from Ludovic Schwob, Jan 12 2026

Status

approved