87924
domain: N
Appears in sequences
- Number of trees with n nodes and 5 leaves.at n=25A055292
- Number of subgroups of the group GL(2,Z_n) of invertible 2 X 2 matrices mod n (sequence A000252).at n=21A066514
- Number of n X n 0..2 arrays with no element equal to any value at offset (0,-2), (-1,-2) or (-2,-1) and new values introduced in order 0..2.at n=4A275084
- Number of nX5 0..2 arrays with no element equal to any value at offset (0,-2) (-1,-2) or (-2,-1) and new values introduced in order 0..2.at n=4A275087
- T(n,k)=Number of nXk 0..2 arrays with no element equal to any value at offset (0,-2) (-1,-2) or (-2,-1) and new values introduced in order 0..2.at n=40A275090
- Number of 5Xn 0..2 arrays with no element equal to any value at offset (0,-2) (-1,-2) or (-2,-1) and new values introduced in order 0..2.at n=4A275093