Number of ordered ways of writing the n-th n-gonal number as a sum of n nonzero n-gonal numbers.
A335634
Number of ordered ways of writing the n-th n-gonal number as a sum of n nonzero n-gonal numbers.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =0a(4) =1a(5) =30a(6) =180a(7) =700a(8) =3780a(9) =11844a(10) =50610a(11) =325820a(12) =5803380a(13) =126594910a(14) =2114901789a(15) =28282722650a(16) =323420067880
External references
- oeis: A335634