A153993 Number of planar n X n X n binary triangular grids symmetric both under 120 degree rotation and reflection with no more than 10 ones in any 5 X 5 X 5 subtriangle.

1, 2, 2, 4, 8, 12, 23, 90, 162, 611, 2402, 8560, 32187, 246141, 874521, 6300203, 48576212, 330649842, 2414376086, 35637800561, 246608696517, 3459350545304, 51985154551969, 691390369850685, 9855466810408009, 284813053880252248