Number of ordered ways of writing n as a sum of n square pyramidal numbers.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =6a(6) =31a(7) =106a(8) =281a(9) =631a(10) =1306a(11) =2806a(12) =6931a(13) =19306a(14) =55070a(15) =150816a(16) =391161a(17) =977501a(18) =2426071a(19) =6141865a(20) =16000186a(21) =42465571a(22) =112950916a(23) =297793651a(24) =776866355a(25) =2015237231a(26) =5233754306a(27) =13668689206a(28) =35908153534a(29) =94633042267