28480
domain: N
Appears in sequences
- Triangle of coefficients of polynomials (rising powers) useful for convolutions of A001333(n+1), n >= 0 (associated Pell numbers).at n=11A062134
- Number of subgroups of the group C_n X C_n X C_n (where C_n is the cyclic group of order n).at n=44A064803
- Smallest number beginning with n and having exactly n divisors.at n=27A077350
- Row sums of the triangle described in A082200.at n=30A082203
- Triangular array read by rows: a(n, k) = number of ordered factorizations of a "hook-type" number with n total prime factors and k distinct prime factors. "Hook-type" means that only one prime can have multiplicity > 1.at n=39A098348
- Number of practical numbers not exceeding 2^n.at n=18A209237
- Even numbers in A221715.at n=46A213218
- Number of (n+1) X (1+1) 0..1 arrays with the sum of each 2 X 2 subblock two extreme terms minus its two median terms lexicographically nondecreasing rowwise and columnwise.at n=9A235549
- Number of 2 X 2 matrices having entries in {0,1,...,n} and determinant in the closed interval [-n,n] with no entry repeated.at n=22A279063
- Number of binary matrices with a total of n ones, distinct columns each with the same number of ones and nonzero rows in nonincreasing lexicographic order.at n=14A331391
- Number of ways to write n as an ordered sum of 10 squares of positive integers.at n=51A340947
- Triangle read by rows: T(n,k) is the number of k-dimensional faces of the n-dimensional Kunz cone, 0 <= k <= n.at n=58A364856