Positive integers n for which n = f(n), where f(n) is the total number of 4's required when writing out all numbers between 0 and n.
A101641
Positive integers n for which n = f(n), where f(n) is the total number of 4's required when writing out all numbers between 0 and n.
Terms
- a(0) =499999984a(1) =499999985a(2) =499999986a(3) =499999987a(4) =499999988a(5) =499999989a(6) =499999990a(7) =499999991a(8) =499999992a(9) =499999993a(10) =500000000a(11) =10000000000a(12) =10499999984a(13) =10499999985a(14) =10499999986a(15) =10499999987a(16) =10499999988a(17) =10499999989
External references
- oeis: A101641