127654
domain: N
Appears in sequences
- Number of ways to build a contiguous building with n LEGO blocks of size 2 X 2 on top of a fixed block of the same size so that the building is symmetric after a rotation by 180 degrees.at n=9A123822
- Number of compositions (ordered partitions) of n into unitary divisors of n.at n=36A286851
- Number of compositions (ordered partitions) of n into squares dividing n.at n=36A294105