27340
domain: N
Appears in sequences
- Nearest integer to ratio of volume of n-dimensional cube of side 2 to volume of n-dimensional ball of radius 1.at n=14A057649
- Numbers which are the sum of their proper divisors containing the digit 6.at n=1A059465
- Floor of ratio of volume of n-dimensional cube of side 2 to volume of n-dimensional ball of radius 1.at n=14A072168
- Number of ways to choose four collinear points from an n X n grid.at n=12A178256
- Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX4 array.at n=6A219812
- T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nXk array.at n=51A219816
- Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array.at n=3A219821
- The Szeged index of the parallelogram-shaped benzenoid Q_k (see Fig. 5.7 of the Diudea et al. reference).at n=3A245832
- Expansion of Sum_{n>=1} q^(n*(n-1)) / (1-q)^n.at n=42A321481
- Numbers k such that 24*k-1 has at least three factors 7 and the partition function evaluated at k has at least the same number of factors 7 as 24*k-1.at n=34A340957
- a(n) is the number of integers that can be represented in a 7-segment display by using only n segments (version A063720).at n=20A350439