72718

Appears in sequences

• Number of 7's in all partitions of n.at n=48A024791
• Number of occurrences of smallest prime factor in all partitions of n-th composite number: a(n)=A066633(A002808(n), A056608(n)).at n=32A091109
• Number of quadrilateral regions in a "frame" of size n X n (see Comments in A331776 for definition), divided by 8.at n=35A332596
• Number of n-step self-avoiding walks on three quadrants of a 2D square lattice.at n=11A348057
• Expansion of (1 - x + x^3)/((1 - x + x^3)^2 + 4*x^4).at n=19A375289