Number of strings of numbers x(i=1..n) in 0..5 with sum i^3*x(i) equal to n^3*5.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =10a(5) =41a(6) =135a(7) =477a(8) =1719a(9) =5987a(10) =20942a(11) =72586a(12) =245893a(13) =825328a(14) =2735778a(15) =8923167a(16) =28779207a(17) =91732303a(18) =288568276a(19) =898134715a(20) =2765300373a(21) =8421195140a(22) =25394904018a(23) =75848295457a(24) =224397367622a(25) =658053395498