48950

Appears in sequences

• Numbers n such that n | (sigma_5(n) - phi(n)^5).at n=25A055699
• Sum of all parts of all partitions of n.at n=25A066186
• Expansion of (1-x)/(1-x+2*x^2).at n=31A078020
• Fourth column of second-order Eulerian triangle A008517 divided by 4.at n=4A112499
• Triangle T, read by rows, where column k of matrix power T^( k(k+1)/2 ) equals left-shifted column (k-1) of T for k>=1.at n=30A126460
• Column 2 of triangle A126460; equals the number of subpartitions of the partition {(k^2 + 9*k + 20)*k/6, k>=0}.at n=5A126462
• Number of Ferrers diagrams with a single Ferrers puncture with the same orientation inscribed strictly inside with half-perimeter = n.at n=8A133106
• a(n) = 2*A001610(n).at n=20A168674
• Number of Hamiltonian cycles in the generalized Petersen Graph P(n,2).at n=39A195197
• Numerator of the mean of all parts of all partitions of n.at n=24A236360
• a(n) = pg(3, n) + pg(4, n) + ... + pg(n, n) where pg(m, n) is the n-th m-th-order polygonal number.at n=22A241452
• Numbers n such that n and n+1 both have 24 divisors.at n=27A274362
• a(n) = n*F(n)*F(n+1), where F = A000045.at n=10A292465
• Number of integer partitions of n whose parts have weakly decreasing numbers of prime factors (A001222).at n=47A358909
• The number of Hamiltonian cycles in the concentric ring graph of order n.at n=18A384294