28288

Appears in sequences

• a(n) = 2^(n-3)*(n + 3)*(2*n - 3).at n=7A059224
• Denominator of b(n) = (50*n-6)/(binomial(3n,n)*2^n).at n=6A072973
• Where records occur in A063574.at n=12A075662
• In the interior of a regular 2n-gon with all diagonals drawn, the number of points where exactly three diagonals intersect.at n=32A101363
• The n-th n-gonal number divisible by n.at n=15A117669
• Numerators of reduced forms of fractions obtained by performing the first n divisions shown below.at n=11A120031
• a(n) = Sum_{k=1..9} floor(10^n / k).at n=4A130901
• Number of (w,x,y,z) with all terms in {0,...,n} and w=max{w,x,y,z}-2*min{w,x,y,z}.at n=25A212745
• Number of 0..4 arrays of length n with each element differing from at least one neighbor by 1 or less, starting with 0.at n=8A221679
• Number of subsets A of {0,1,...,n-1} with |A+A| < |A-A|.at n=14A222808
• The number of NE partitions of n (see Comments).at n=38A239329
• Numbers k for which the digital sum of k contains the same distinct digits as k itself.at n=36A249515
• Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row and column sum unequal to 4 or 5 and every diagonal and antidiagonal sum equal to 4 or 5.at n=6A251901
• Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and column sum unequal to 4 or 5 and every diagonal and antidiagonal sum equal to 4 or 5.at n=3A251904
• Number of nX2 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.at n=6A278721
• Number of nX7 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.at n=1A278726
• T(n,k)=Number of nXk 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.at n=29A278727
• T(n,k)=Number of nXk 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.at n=34A278727
• Numbers with digits 2 and 8 only.at n=41A284922
• Expansion of Product_{k=1..12} theta_3(q^k), where theta_3() is the Jacobi theta function.at n=38A320246