The number of distinct parts in the partition sequence lambda(n) formed by the recurrence lambda(1) = 1 and lambda(n+1) is the sum of lambda(n) and its conjugate.
A064660
The number of distinct parts in the partition sequence lambda(n) formed by the recurrence lambda(1) = 1 and lambda(n+1) is the sum of lambda(n) and its conjugate.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =6a(6) =8a(7) =11a(8) =15a(9) =22a(10) =30a(11) =39a(12) =53a(13) =75a(14) =106a(15) =151a(16) =215a(17) =297a(18) =424a(19) =592a(20) =835a(21) =1162a(22) =1618a(23) =2274a(24) =3217a(25) =4556a(26) =6361a(27) =8940a(28) =12560a(29) =17645
External references
- oeis: A064660