108220

Appears in sequences

• Coordination sequence for A_4 lattice.at n=21A008383
• The work performed by a partial function f:{1,...,n}->{1,...,n} is defined to be work(f)=sum(|i-f(i)|,i in dom(f)); a(n) is equal to sum(work(f)) where the sum is over all injective partial functions f:{1,...,n}->{1,...,n}.at n=5A111874
• Number of integer sequences of length n+1 with sum zero and sum of absolute values 42.at n=3A157070