53136

Appears in sequences

• Restricted permutations.at n=20A036999
• a(n) = n^2*(n^2 + 1)*(n-1).at n=9A037250
• a(n) = n^4*(n^4+1)*(n^2-1).at n=3A064583
• a(n) is the left term in M^n * [1 0 0], M = the 3 X 3 matrix [1 -1 0 / -1 3 -2 / 0 -2 2].at n=9A094433
• Numbers whose set of base 9 digits is {0,8}.at n=20A097255
• Sum of the odd parts in all partitions of n into distinct parts.at n=46A116682
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (0, -1, 1), (0, 1, 0), (1, 0, 1), (1, 1, -1)}.at n=8A150642
• Numbers with 50 divisors.at n=12A175756
• Numbers with prime factorization pq^4r^4.at n=11A190012
• Nonprime numbers k such that the sum of the divisors of k^2 is of the form m^2 + m + 1.at n=37A289385
• Number of vertices of type A at level n of the hyperbolic Pascal pyramid.at n=13A292290
• Inverse permutation to A302350.at n=15A302536
• a(n) is the absolute difference between the Pisano periods of prime(n)^2 and prime(n).at n=37A343117
• G.f.: 1 + 1*x/(1 + 2*x^2/(1 + 3*x^3/(1 + 4*x^4/(1 + 5*x^5/(1 + ...))))).at n=32A343468
• Numbers that are the sum of three positive cubes in four or more ways.at n=4A343968
• Numbers that are the sum of three positive cubes in exactly 4 ways.at n=4A343969
• Numbers that have exactly two exponents in their prime factorization that are equal to 4.at n=17A386805