Concatenate the positions of digits 0, 1,..., 9 in the decimal representation of n, using 1 for the rightmost digit etc., and 0 when the digit does not occur.
A260519
Concatenate the positions of digits 0, 1,..., 9 in the decimal representation of n, using 1 for the rightmost digit etc., and 0 when the digit does not occur.
Terms
- a(0) =1000000000a(1) =100000000a(2) =10000000a(3) =1000000a(4) =100000a(5) =10000a(6) =1000a(7) =100a(8) =10a(9) =1a(10) =1200000000a(11) =1200000000a(12) =210000000a(13) =201000000a(14) =200100000a(15) =200010000a(16) =200001000a(17) =200000100a(18) =200000010a(19) =200000001a(20) =1020000000a(21) =120000000a(22) =120000000a(23) =21000000a(24) =20100000a(25) =20010000a(26) =20001000a(27) =20000100a(28) =20000010a(29) =20000001
External references
- oeis: A260519