27440

Appears in sequences

• G.f.: (1 + x^4 + x^7 + 2*x^8 + x^9 + x^12 + x^16)/Product_{i=1..8} (1 - x^i).at n=39A003405
• Expansion of (1-x^5) / (1-x)^5.at n=32A008487
• Scaled Chebyshev U-polynomials evaluated at i*sqrt(7)/2. Generalized Fibonacci sequence.at n=5A057090
• Sums of terms of groups in A075621.at n=37A075625
• Numbers whose digital sum is equal to the sum of primes from their smallest to largest prime factor.at n=18A076406
• a(n) = 4*n^3 + 4.at n=19A100214
• Primal codes of finite permutations on positive integers.at n=36A109297
• Triangle of coefficients in expansion of (14 + x)^n.at n=17A147716
• The number of homogeneous trisubstituted linear alkanes.at n=34A159938
• Number of reduced words of length n in the Weyl group B_7.at n=19A161716
• Number of reduced words of length n in the Weyl group B_7.at n=30A161716
• a(n) = product of decimal digits of A000043(n).at n=33A163821
• Totally multiplicative sequence with a(p) = 7*(p+2) for prime p.at n=11A167308
• Numbers of the form p^4*q^3*r where p, q, and r are distinct primes.at n=34A179698
• Total sum of Fibonacci parts in all partitions of n.at n=25A199936
• Row sums of triangle A203484.at n=11A203498
• Number of 2 X 2 matrices having all elements in {0,1,...,n} and determinant in the open interval (-n,n).at n=18A211032
• Triangular array read by rows: T(n, k) is the number of rooted forests on {1, 2, ..., n} in which one tree has been specially designated that contain exactly k trees; n >= 1, 1 <= k <= n.at n=24A225465
• The number of orbits of 4-tuples of the dihedral group of order 2n acting on {1,2,...,n}.at n=37A236332
• a(n) = 10*n^3.at n=14A244729