27008
domain: N
Appears in sequences
- Coordination sequence for 8-dimensional cubic lattice.at n=6A008416
- Coordination sequence for C_8 lattice.at n=3A019564
- Numbers k that divide the (right) concatenation of all numbers <= k written in base 9 (most significant digit on left).at n=25A029454
- Number of points of L1 norm 6 in cubic lattice Z^n.at n=8A035600
- Numbers n such that n^3 is palindromic in base 15.at n=13A046251
- Diagonal sums of number array A082046.at n=15A082047
- Number of subsets of {1, ..., n} that are not double-free.at n=15A088808
- Index k of the first occurrence of A019565(2n-1) as the smallest term that makes prime(k)-A019565(2n-1) prime.at n=32A103792
- Square array A(n,k) read by antidiagonals: row n gives coordination sequence for lattice C_n.at n=48A103884
- Triangle read by rows: T(n,k) (0 <= k <= n) is the number of Delannoy paths of length n that start with exactly k (0,1) steps (or, equivalently, with exactly k (1,0) steps).at n=38A110171
- Number of ascents in all Schroeder paths of length 2n.at n=7A125190
- Number of n X n 0..2 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=7A201270
- Number of n X 7 0..2 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=7A201276
- Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 283", based on the 5-celled von Neumann neighborhood.at n=14A280530
- Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 169", based on the 5-celled von Neumann neighborhood.at n=14A286174
- T(n,k) is the coordination number of the (n+1)-dimensional cubic lattice for radius k; triangle read by rows, n>=0, 0<=k<=n.at n=34A343599
- G.f. A(x) satisfies A(x) = ( 1 + 4*x*(1 + x*A(x)) )^(1/2).at n=11A372002
- Expansion of Sum_{k>=0} x^(2*k) / Product_{j=1..3*k} (1 - j * x).at n=8A392727