Gould's sequence: a(n) = Sum_{k=0..n} (binomial(n,k) mod 2); number of odd entries in row n of Pascal's triangle (A007318); a(n) = 2^A000120(n).
A001316
Gould's sequence: a(n) = Sum_{k=0..n} (binomial(n,k) mod 2); number of odd entries in row n of Pascal's triangle (A007318); a(n) = 2^A000120(n).
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =2a(5) =4a(6) =4a(7) =8a(8) =2a(9) =4a(10) =4a(11) =8a(12) =4a(13) =8a(14) =8a(15) =16a(16) =2a(17) =4a(18) =4a(19) =8a(20) =4a(21) =8a(22) =8a(23) =16a(24) =4a(25) =8a(26) =8a(27) =16a(28) =8a(29) =16
External references
- oeis: A001316