180018

Appears in sequences

• Integers n such that n = A067030(j) for some j and A067286(j) < A067034(j).at n=37A068798
• Triangle interpolating the swinging factorial (A056040) restricted to odd indices with its binomial transform. Same as interpolating the beta numbers 1/beta(n,n) (A002457) with (A163869). Triangle read by rows, for n >= 0, k >= 0.at n=29A163842
• The number of words of length n created with letters a, b, and 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 and no subwords (any adjacent or nonadjacent subsequence of letters) of the form abc.at n=16A176433
• Expansion of 1/(1 - 4*x/(1-x))^(3/2).at n=7A377197