a(0)=1. a(n) = a(n-1)*2, if n is in the sequence. a(n) = a(n-1) + 1 if n is missing from the sequence.
A118551
a(0)=1. a(n) = a(n-1)*2, if n is in the sequence. a(n) = a(n-1) + 1 if n is missing from the sequence.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =5a(4) =10a(5) =20a(6) =21a(7) =22a(8) =23a(9) =24a(10) =48a(11) =49a(12) =50a(13) =51a(14) =52a(15) =53a(16) =54a(17) =55a(18) =56a(19) =57a(20) =114a(21) =228a(22) =456a(23) =912a(24) =1824a(25) =1825a(26) =1826a(27) =1827a(28) =1828a(29) =1829
External references
- oeis: A118551