40409

Appears in sequences

• Binomial transform of floor(n/2)!.at n=12A081124
• Smallest sequence which lists the position of digits "3" in the sequence.at n=35A167453
• First term of n-th difference sequence of (floor(k*r)), r = sqrt(8), k >= 0.at n=18A325674
• Numbers whose palindromization is a perfect power.at n=28A342942