Number of ordered ways of writing the n-th n-gonal pyramidal number as a sum of n nonzero n-gonal pyramidal numbers.

A336303

Number of ordered ways of writing the n-th n-gonal pyramidal number as a sum of n nonzero n-gonal pyramidal numbers.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =0a(4) =6a(5) =0a(6) =180a(7) =630a(8) =1120a(9) =36288a(10) =441000a(11) =6579870a(12) =59734620a(13) =1252872192a(14) =13668490836a(15) =162131872695

External references