1924560

Appears in sequences

• E.g.f. tanh(arctan(x)*log(x+1)).at n=9A012403
• a(n) = 3*a(n-1) + 3*a(n-2), a(0)=0, a(1)=1.at n=12A030195
• Duplicate of A030195.at n=11A085481
• Sum of n consecutive cubes starting from n^3.at n=27A240137