34854
domain: N
Appears in sequences
- Values of y in x^2 - 49 = 2*y^2.at n=15A106526
- Number of permutations of length n which avoid the patterns 2143, 2341, 4312; or avoid the patterns 1234, 1432, 3412.at n=13A116774
- Number of binary strings of length n with equal numbers of 00100 and 00110 substrings.at n=16A164235
- Alternated binomial partial sums of the central Stirling numbers of the second kind.at n=5A187651
- Number of n X 3 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X 3 array.at n=28A219768
- a(n) = (a(n-1) * a(n-3) - (-1)^n * a(n-2)^2) / a(n-4) with a(0) = -3, a(1) = 7, a(2) = 1, a(3) = 46.at n=8A247382
- Number of partitions of 4n into distinct parts with equal sums of odd and even parts.at n=28A255001
- Number of squares in 3-dimensional space whose four vertices have coordinates (x,y,z) in the set {1,...,n}.at n=10A334881
- Irregular triangle read by rows: T(n,k) is the number of partitions of the vertex set of the n-cocktailparty graph into k connected subsets, 1 <= k <= 2*n.at n=24A389985