Number of partitions of n into parts not of the form 21k, 21k+4 or 21k-4. Also number of partitions with at most 3 parts of size 1 and differences between parts at distance 9 are greater than 1.
A035982
Number of partitions of n into parts not of the form 21k, 21k+4 or 21k-4. Also number of partitions with at most 3 parts of size 1 and differences between parts at distance 9 are greater than 1.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =9a(6) =12a(7) =17a(8) =23a(9) =31a(10) =41a(11) =55a(12) =71a(13) =93a(14) =120a(15) =154a(16) =195a(17) =249a(18) =312a(19) =393a(20) =490a(21) =610a(22) =754a(23) =933a(24) =1144a(25) =1404a(26) =1713a(27) =2087a(28) =2531a(29) =3068
External references
- oeis: A035982