381060

Appears in sequences

• T(n,n+2), array T as in A047089.at n=10A047096
• a(n) = pi(phi(p(P(n)))) = A000720(A000010(A000041(A000040(n)))).at n=21A247087
• a(n) = n*(2*n + 1)*(4*n + 1).at n=36A316224