Number of base-5 (n+1)-digit numbers starting with a zero and with adjacent digits differing by one or less.

A057960

Number of base-5 (n+1)-digit numbers starting with a zero and with adjacent digits differing by one or less.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =13a(4) =35a(5) =95a(6) =259a(7) =707a(8) =1931a(9) =5275a(10) =14411a(11) =39371a(12) =107563a(13) =293867a(14) =802859a(15) =2193451a(16) =5992619a(17) =16372139a(18) =44729515a(19) =122203307a(20) =333865643a(21) =912137899a(22) =2492007083a(23) =6808289963a(24) =18600594091a(25) =50817768107a(26) =138836724395a(27) =379308985003

External references