76800

Appears in sequences

• Worst cases for Pierce expansions (numerators).at n=43A006537
• Expansion of theta_3 / theta_4.at n=24A007096
• Expansion of (theta_3(q) / theta_4(q))^2 in powers of q.at n=12A014969
• Triangle of coefficients of certain exponential convolution polynomials.at n=17A048786
• 13-almost primes (generalization of semiprimes).at n=19A069274
• Number of tilings of a 5 X 3n rectangle with right trominoes.at n=5A084478
• Expansion of 1 + 32 * (eta(q^4) / eta(q))^8 in powers of q.at n=6A097243
• Expansion of (phi(-q) / phi(q))^2 in powers of q where phi() is a Ramanujan theta function.at n=12A139820
• Triangular array: rows are the f-vectors of simplicial complexes dual to permutohedra of type D_n.at n=25A145902
• Triangle read by rows: T(n,k) is the number of permutations p of {1,2,...,n} for which the number of j < ceiling(n/2) such that p(j) + p(n+1-j) = n+1 is equal to k (n>=1; 0<=k <=ceiling(n/2)).at n=37A155517
• Totally multiplicative sequence with a(p) = 8*(p+3) for prime p.at n=11A167327
• A triangle related to the a(n) formulas of the rows of the ED4 array A167584.at n=39A167591
• The fourth left hand column of triangle A167591.at n=5A168307
• Expansion of theta_4/theta_3 in powers of q.at n=24A189925
• Triangle read by rows: T(n,k) = Sum_{i <= n, j <= k, (i,j) <> (n,k)} T(i,j), starting with T(1,1) = 1, for n >= 1 and 1 <= k <= n.at n=48A192933
• Numbers k such that (number of prime factors of k counted with multiplicity) less (number of distinct prime factors of k) = 10.at n=28A195069
• Expansion of phi(q^2)^2 / (phi(-q) * phi(q^4)) in powers of q where phi() is a Ramanujan theta function.at n=24A212318
• Composite numbers such that product_{i=1..k} (p_i/(p_i-1)) / sum_{i=1..k} (p_i/(p_i-1)) is an integer, where p_i are the k prime factors of n (with multiplicity).at n=19A227034
• Expansion of phi(q^2)^2 / (phi(q) * phi(q^4)) in powers of q where phi() is a Ramanujan theta function.at n=24A232358
• Integer areas of integer-sided triangles where two sides are of square length.at n=29A232461