151560

Appears in sequences

• Coordination sequence for A_9 lattice.at n=4A008393
• Triangle T(n,k) read by rows, defined by T(n,k) = (n-k)*T(n-1,k)+Sum(k=1..n, T(n-1,k)); T(1,1) = 1, T(1,k)= 0 if k >1.at n=29A089225
• Lower triangular array called S2hat(-1) related to partition number array A144269.at n=47A144270
• Third column (m=3) of triangle S2hat(-1) = A144270.at n=7A144273
• Number of integer sequences of length n+1 with sum zero and sum of absolute values 8.at n=8A157053
• Numbers of the form k + wt(k) for exactly four distinct k, where wt(k) = A000120(k) is the binary weight of k.at n=18A227915