40360320

Appears in sequences

• Unitary superperfect numbers: numbers n such that usigma(usigma(n)) = 2*n, where usigma(n) is the sum of unitary divisors of n (A034448).at n=24A038843
• Triangle T(n, k) of numbers of square lattice walks that start and end at origin after 2*n steps and contain exactly k steps to the east, possibly touching origin at intermediate stages.at n=39A069466
• Triangle T(n, k) of numbers of square lattice walks that start and end at origin after 2*n steps and contain exactly k steps to the east, possibly touching origin at intermediate stages.at n=41A069466
• Triangle of numbers used for basis change between certain falling factorials.at n=34A089503
• Magic products of 6 X 6 multiplicative magic squares.at n=17A113026
• Duplicate of A069466.at n=39A141902
• Positive integers whose maximum frequency in a fixed row of A036038 (or A078760) is equal to 3, i.e., numbers m such that A376663(m) = 3.at n=16A376670