51451

Appears in sequences

• Expansion of 1/(x^k*(1 - x - 3*x^(k+1))) for k=3.at n=20A143454
• a(n) = 42*n^2 + 1.at n=35A158604
• The number of words of length n created with the letters a, b, c with at least as many a's as b's and at least as many b's as c's and no adjacent letters forming the pattern aba or bab.at n=12A176148
• Coefficients in expansion of 1/(1 - x - 3*x^4).at n=23A318774
• Number of mutual-visibility sets in the n-ladder graph.at n=22A389183