1965600

Appears in sequences

• Largest number having binary order n (A029837) and of which the number of divisors is maximal in that range of g(k) = n.at n=21A036493
• Triangle of coefficients of Gandhi polynomials.at n=33A036970
• Numbers k such that sigma(k) - usigma(k) > 3k.at n=6A063875
• a(1) = a(2) = 1; a(n) = sigma(a(n-1)+a(n-2)).at n=15A069143
• a(1) = 1; for n > 1, a(n) = LCM of next n composite numbers.at n=5A074094
• Denominators of expansion of 1/x+1/log(1-x).at n=23A075178
• Another version of triangular array in A036970: triangle T(n,k), 0<=k<=n, read by rows; given by [0, 1, 2, 4, 6, 9, 12, 16, 20, 25, 30, ...] DELTA [1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, ...] where DELTA is the operator defined in A084938.at n=42A094346
• Location of records in A099564.at n=29A099565
• Smallest j associated with a(n) in A103277.at n=6A103278
• a(1) = 1. For n >= 2, a(n) = sum of the two (not necessarily distinct) earlier terms, a(j) and a(k), which maximizes d(a(j)+a(k)), where d(m) is the number of positive divisors of m. a(n) = the minimum (a(j)+a(k)) if more than one such sum has the maximum number of divisors.at n=26A115387
• Symmetrical Hahn weights on q-form factorials:m=3;q=4; q-form:t(n,m)=If[m == 0, n!, Product[Sum[(m + 1)^i, {i, 0, k - 1}], {k, 1, n}]]; Hahn weight:b(n,k,m)=If[n == 0, 1, (n!*t[m + 1, k]*t[m + 1, n - k])/(k!*(n - k)!*t[1, n])].at n=7A157322
• Symmetrical Hahn weights on q-form factorials:m=3;q=4; q-form:t(n,m)=If[m == 0, n!, Product[Sum[(m + 1)^i, {i, 0, k - 1}], {k, 1, n}]]; Hahn weight:b(n,k,m)=If[n == 0, 1, (n!*t[m + 1, k]*t[m + 1, n - k])/(k!*(n - k)!*t[1, n])].at n=8A157322
• Triangle S(n,k) by rows: coefficients of 3^((n-1)/2)*(x^(1/3)*d/dx)^n when n is odd, and of 3^(n/2)*(x^(2/3)*d/dx)^n when n is even.at n=43A223169
• Triangle S(n,k) by rows: coefficients of 3^(n/2)*(x^(2/3)*d/dx)^n when n=0,2,4,6,...at n=23A223526
• Smallest number k such that the symmetric representation of sigma(k) has at least one part of width n.at n=28A250070
• Positions of records in A266342.at n=11A266343
• Positions of records in A266344.at n=18A266345
• Ramanujan's largely composite numbers n (A067128) which are not divisible by all the primes < p, where p is the greatest prime divisor of n.at n=30A273379
• Highly composite numbers of class 4 (see comment in A275239).at n=38A275242
• Coefficients in q-expansion of E_2^2, where E_2 is the Eisenstein series shown in A006352.at n=20A281374