111664

Appears in sequences

• Number of n-node trees with a forbidden limb of length 5.at n=18A002991
• Diagonal sums of symmetric triangle A108350.at n=21A108351
• Principal diagonal of the convolution array A213838.at n=27A213839
• Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape I; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=28A247703
• Number of tilings of a 5 X n rectangle using n pentominoes of any but the I shape.at n=7A247767