30539367

Appears in sequences

• 1/6 the number of (n+1) X 3 0..2 arrays with every 2 X 2 subblock containing all three values.at n=7A183596
• 1/6 the number of (n+1)X9 0..2 arrays with every 2X2 subblock containing all three values.at n=1A183602