Number of strings of length n over Z_5 with trace 0 and subtrace 1.

A073964

Number of strings of length n over Z_5 with trace 0 and subtrace 1.

Terms

    a(0) =0a(1) =2a(2) =6a(3) =20a(4) =100a(5) =600a(6) =3150a(7) =15750a(8) =78000a(9) =390000a(10) =1952500a(11) =9768750a(12) =48831250a(13) =244125000a(14) =1220625000a(15) =6103437500a(16) =30517656250a(17) =152588281250a(18) =762939062500

External references