119340

Appears in sequences

• a(n) = 6*(2*n+1)! / ((n!)^2*(n+3)).at n=8A007946
• Even numbers (not equal to 2) to the left of the central elements of the (2,3)-Pascal triangle A029600.at n=37A029613
• Even numbers to the right of the central numbers of the (1,2)-Pascal triangle A029635.at n=52A029643
• a(n) = binomial(n+7, 7)*(n+4)/4.at n=11A053347
• Numbers y such that 19*y^2 + 81 is a square.at n=10A167709
• Subsequence of A167709 whose indices are congruent to 0 mod 5, i.e., a(n) = A167709(5*n).at n=2A167820
• a(n) = (4*n^3 + n^2 - 3*n)/2.at n=39A172073
• Molecular topological indices of the crossed prism graphs.at n=16A192793
• Number of ways to arrange 4 indistinguishable points on an n X n X n triangular grid so that no three points are collinear at any angle.at n=8A194132
• Values of the difference d for 7 primes in geometric-arithmetic progression with the minimal sequence {7*7^j + j*d}, j = 0 to 6.at n=11A209206
• a(n) = 6*(n+1)!/((3+floor(n/2))*(floor(n/2)!)^2).at n=16A242986
• Number of ways to partition the multiset consisting of n copies each of 1, 2, and 3 into n sets of size 3.at n=25A254233
• Denominators of partial sums of the reciprocals of the decagonal numbers.at n=4A294515
• Sum of all the parts in the partitions of n into 9 parts.at n=39A326464
• Triangle, read by rows, where the n-th row lists the (n^2+1) coefficients of (1+2*x+...+(n+1)*x^n)^n.at n=46A329709