60486

Appears in sequences

• Number of Catalan knight paths from (0,0) to (n,1) in the region between and on the lines y=0 and y=3. (See A096587 for the definition of Catalan knight.).at n=21A099329
• Number of nX2 1..2 arrays with every element value z a city block distance of exactly z from another element value z.at n=9A209604
• Number of (n+3) X 10 0..2 matrices with each 4 X 4 subblock idempotent.at n=13A224727
• a(n) = 2^m minus (the total number of distinct subsets of length-(m-n) binary words that can appear as the factor of a word of length m, for 0 <= n < m/2).at n=14A225865
• Fixed points of permutations A262323 and A262255.at n=15A262367
• Expansion of g.f. A(x) satisfying A(x)^2 = A( A(x)*C(x) ), where C(x) = x + C(x)^2 is the Catalan function (A000108).at n=10A374570