202840

Appears in sequences

• 3 up, 3 down, 3 up, ... permutations of length 3n+1.at n=3A005982
• Expansion of 1/(1-22*x+22*x^2-x^3).at n=4A212335
• Number of 3 up, 3 down permutations of [n].at n=13A229884
• Number of 4-cycles in the Lucas cube Lambda(n).at n=20A245961