107811

Appears in sequences

• Numbers of the form 3^i*11^j.at n=33A003597
• a(1)=8; if n = Product p_i^e_i, n > 1, then a(n) = Product p_{i+1}^{e_i+2}.at n=27A045971
• a(1) = 1, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10*a(n-1).at n=5A080445
• n = k^2 - (reversal of k)^2 for two different values of k.at n=10A087672
• Let b(0) = 1, b(n) = b(n-1) + (-1)^(n-1)*b(n-1)/10; sequence gives numerator of b(n).at n=5A090337
• Numbers of the form (9^i)*(11^j), with i, j >= 0.at n=18A108687
• a(n) = 3*n^3.at n=33A117642
• Number of functions f:[n]->[n] such that f[(2*x) mod n]=[2*f(x)] mod n for all x in [n], for n=1,2,3,... Here [n] denotes {0,1,2,...,n-1}.at n=32A117987
• Numbers which can be expressed as the product of numbers made of only threes.at n=40A161141
• Products of the 4th power of a prime and a distinct prime of power 3 (p^4*q^3).at n=13A179666
• Number of lower triangles of an n X n integer array with each element differing from all of its vertical and horizontal neighbors by 5 or less and triangles differing by a constant counted only once.at n=2A195275
• T(n,k) = Number of lower triangles of an n X n integer array with each element differing from all of its vertical and horizontal neighbors by k or less and triangles differing by a constant counted only once.at n=23A195278
• Number of lower triangles of a 3 X 3 integer array with each element differing from all of its vertical and horizontal neighbors by n or less and triangles differing by a constant counted only once.at n=4A195279
• a(n) = Product_{d|n} Product_{d_x|n , d_x <= d} d_x.at n=32A220849
• Solutions of the equation n' = n + phi(n), where n' is the arithmetic derivative of n.at n=12A230545
• a(n) = n^3*(2*n^2+1)/3.at n=11A272125
• Total volume of all cubes with side length n which can be split such that n = p + q, p divides q and p < q.at n=32A303972
• Odd numbers k such that rad(k) divides sigma(k).at n=14A336554
• The smaller of a pair of successive cubefull numbers without a powerful number between them.at n=18A371189
• Cubefull numbers whose number of coreful divisors is divisible by their number of exponential divisors.at n=30A382064