26424

Appears in sequences

• Number of ternary squarefree words of length n.at n=29A006156
• Coordination sequence for net formed by holes in D_4 lattice.at n=13A010079
• Expansion of Product_{m>=1} (1 + m*q^m).at n=22A022629
• Decimal concatenations of the 38 quintuples (d1,d2,d3,d4,d5) with elements in {2,4,6} for which there exists a prime p >= 7 such that the differences between the 6 consecutive primes starting with p are (d1,d2,d3,d4,d5).at n=3A078870
• A generalized factorial level recursion of a Padovan type: a(n) = b(n)*(a(n-2) + a(n-3)) with b(n) = b(n-1) + k and k=2.at n=9A142704
• a(1) = 1, a(2) = 6, a(n+2) = 6*a(n+1) + (n + 1)*(n + 2)*a(n).at n=5A142985
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 185", based on the 5-celled von Neumann neighborhood.at n=32A270636
• Triangle read by rows: T(n,k) is the number of 2k-cycles in the n X n grid graph (2 <= k <= floor(n^2/2), n >= 2).at n=45A302337
• Positive numbers k such that k and k + 1 are both positive negaFibonacci-Niven numbers (A331085) and -k and -(k + 1) are both negative negaFibonacci-Niven numbers (A331088).at n=41A331092
• E.g.f.: 1 / (1 + x^2/2 + log(1 - x)).at n=7A337060
• a(n) is the number of pseudo-Latin stable matchings in a particular matrix of size n (see Comments for detail).at n=14A371810