3499929

Appears in sequences

• Table read by descending antidiagonals: T(k,n) (k >= 0, n>= 1) is number of ways to (k+2)-color a 3 X n grid ignoring the variations of two colors.at n=30A355881
• Number of ways to 4-color a 3 X n grid ignoring the variations of two colors.at n=5A355882