Number of strings of numbers x(i=1..n) in 0..5 with sum i*x(i)^4 equal to n*625.
A184844
Number of strings of numbers x(i=1..n) in 0..5 with sum i*x(i)^4 equal to n*625.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =8a(6) =33a(7) =183a(8) =1136a(9) =5506a(10) =24282a(11) =117926a(12) =569254a(13) =2774987a(14) =13031733a(15) =58087202a(16) =261738519a(17) =1186540784a(18) =5337900539a(19) =23545839048a(20) =102301482654a(21) =442231758905
External references
- oeis: A184844