131062

Appears in sequences

• a(n) = Sum_{ d|n } sigma(n/d)*d^4.at n=17A027848
• a(-1) = 1, a(n) = Sum_{k=0..n} A034851(n,k)*a(k-1) where A034851(n,k) are entries in Losanitsch's triangle.at n=11A102814
• a(n) = (-1/2)*Sum_{i1 + i2 + i3 = 2*n} ((2*n)!/(i1! i2! i3!))*B(i1), where B are the Bernoulli numbers (with i1, i2, i3 >= 1).at n=8A124133
• Residues of 3^(2^(p(n)-1)+1) for Mersenne numbers with prime indices.at n=6A131460
• a(n) = 2^n - 10.at n=17A246168
• Rectangular array A read by upward antidiagonals in which the entry in row n and column k is defined by A(n,k) = (2^a(n)*(6*k - (3 - (-1)^a(n))*(1 - (-1)^n)/2) - 2^n + 4)/6, n,k >= 1, where {a(n)} is the Beatty sequence A117630 defined by a(n) = floor(n*log(3)/log(3/2)).at n=22A254312
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 565", based on the 5-celled von Neumann neighborhood.at n=16A289402
• a(n) = 2^n - floor((n+3)/2).at n=17A320933