48024
domain: N
Appears in sequences
- Product of all distinct nonzero numbers that can be formed from the digits of n.at n=28A061497
- Composite numbers k such that phi(k) divides sigma(k) - 2*k.at n=27A068412
- Number of Sophie Germain primes less than 2^n.at n=22A211397
- Number of rooted planar binary unlabeled trees with n leaves and caterpillar index = 3.at n=13A214199
- Number of (n+2) X (1+2) 0..2 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=4A252945
- Number of (n+2)X(5+2) 0..2 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=0A252949
- T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=10A252952
- T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=14A252952
- p-INVERT of the odd positive integers, where p(S) = 1 - S - 6 S^2.at n=6A292489
- Numbers k such that sigma(k) = 2*k + 3*phi(k).at n=7A392691