510464

Appears in sequences

• The floor(n/3)-perfect numbers, where f-perfect numbers for an arithmetical function f are defined in A066218.at n=16A066238
• Expansion of (1-x)/(1-2*x^2-2*x^3).at n=26A078023
• 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, -1, -1), (-1, 0, 0), (-1, 1, 1), (1, 0, 0), (1, 0, 1)}.at n=10A150667
• Numbers k whose abundance is 26: sigma(k) - 2*k = 26.at n=5A275701