172980

Appears in sequences

• Triangle read by rows, based on a simple Fibonacci recursion rule.at n=61A111669
• Number of 2-step self-avoiding walks on an n X n X n cube summed over all starting positions.at n=30A187163
• Number of 0..3 arrays of length n+3 with sum no more than 6 in any length 4 subsequence (=50% duty cycle).at n=6A212465
• Number of 0..3 arrays of length 2*n+6 with sum no more than 3*n in any length 2n subsequence (=50% duty cycle).at n=1A212478
• Number of length 7+3 0..n arrays with no consecutive four elements summing to more than 2*n.at n=2A241970
• Number of compositions of n such that the sum of the parts counted without multiplicities is equal to the sum of all multiplicities.at n=22A243149
• First elements of maximal isospectral chains of length 3.at n=22A335082