198091

Properties

Appears in sequences

• Number of multigraphs on n labeled edges (with loops). Also number of genetically distinct states amongst n individuals.at n=6A020555
• a(n) = A108462(A025487(n)).at n=37A108463
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 1, 1), (1, -1, 1), (1, 1, -1)}.at n=10A149024
• 0-sequence of reduction of the lower Wythoff sequence by x^2 -> x+1.at n=19A192300
• Number A(n,k) of k-partite partitions of {n}^k into k-tuples; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=38A219727
• Array read by upwards antidiagonals: T(m,n) = number of set partitions of the multiset consisting of one copy each of x_1, x_2, ..., x_m, and two copies each of y_1, y_2, ..., y_n, for m >= 0, n >= 0.at n=27A322765
• Irregular triangle read by rows where T(n,k) is the number of multiset partitions of a multiset with d = A027750(n,k) copies of each integer from 1 to n/d.at n=30A322786
• Number of partitions of the (n+6)-multiset {1,2,...,n,1,2,...,6}.at n=6A346883
• Prime numbersat n=17829