2293760

Appears in sequences

• Fourth unsigned column of Lanczos triangle A053125 (decreasing powers).at n=6A054322
• Products of exactly 18 primes (generalization of semiprimes).at n=18A069279
• Main diagonal of the table of k-almost primes (A078840): a(n) = (n+1)-st integer that is an n-almost prime.at n=18A078841
• A transform of C(n,3).at n=13A082138
• Row sums of A128134.at n=17A128135
• Binomial transform of [1, 2, -3, -4, 5, 6, -7, -8, 9, 10, ...].at n=33A140230
• Denominators of expansion of exp(1-sqrt(1-3*x)).at n=9A144526
• a(0) = 9, a(n) = 2*a(n-1) + 2^(n-1) for n > 0.at n=17A159697
• Triangle read by rows, T(n,k) = k^n*A056040(n), n>=0, 0<=k<=n.at n=32A195009
• Number of parts in all palindromic compositions of n.at n=34A239632
• Denominators of coefficients in asymptotic expansion of C_n (number of connected chord diagrams, A000699).at n=9A280777
• 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 315", based on the 5-celled von Neumann neighborhood.at n=24A281046
• 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 205", based on the 5-celled von Neumann neighborhood.at n=26A286697
• 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 358", based on the 5-celled von Neumann neighborhood.at n=23A287785
• a(n) is the number of squares with largest size after n iterations of the "Square Multiscale" substitution.at n=49A329927