a(n) = 512*n^9 - 1024*n^7 + 672*n^5 - 160*n^3 + 10*n.
A242854
a(n) = 512*n^9 - 1024*n^7 + 672*n^5 - 160*n^3 + 10*n.
Terms
- a(0) =0a(1) =10a(2) =151316a(3) =7997214a(4) =118118440a(5) =922080050a(6) =4878316860a(7) =19828978246a(8) =66593931344a(9) =193501094490a(10) =501827040100
External references
- oeis: A242854