102680domain: NAppears in sequencesSlowest increasing sequence with its first 10 digits all different one from another, then the next 10, then the next 10, etc.at n=38A106604Expand 1/(8 - 8 x + 3 x^3 - 2 x^4) in powers of x, then multiply coefficient of x^n by 8^(1 + floor(n/3)) to get integers.at n=23A206568