a(n) = number of partitions of n into an odd number of parts, the least being 2; also a(n+2) = number of partitions of n into an even number of parts, each >=2.
A027188
a(n) = number of partitions of n into an odd number of parts, the least being 2; also a(n+2) = number of partitions of n into an even number of parts, each >=2.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =0a(4) =0a(5) =0a(6) =1a(7) =1a(8) =2a(9) =2a(10) =4a(11) =4a(12) =6a(13) =7a(14) =11a(15) =12a(16) =17a(17) =20a(18) =28a(19) =33a(20) =44a(21) =52a(22) =69a(23) =82a(24) =105a(25) =126a(26) =161a(27) =191a(28) =239a(29) =286
External references
- oeis: A027188