18552

Appears in sequences

• Let (u1,u2) be successive untouchable numbers such that phi(u1) = phi(u2); sequence gives values of u2.at n=38A048190
• The number phi_3(n) of Frobenius partitions that allow up to 3 repetitions of an integer in a row.at n=24A053992
• Numbers k that divide floor((3/2)^k) = A002379(k).at n=15A073633
• Expansion of 1/sqrt(1-4*x^2-4*x^3).at n=14A115962
• Total number of parts in all overpartitions of n.at n=16A235792
• Number of (n+1)X(3+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically.at n=9A253693