Number of partitions of n into parts not of form 4k+2, 20k, 20k+9 or 20k-9. Also number of partitions in which no odd part is repeated, with at most 4 parts of size less than or equal to 2 and where differences between parts at distance 4 are greater than 1 when the smallest part is odd and greater than 2 when the smallest part is even.
A036028
Number of partitions of n into parts not of form 4k+2, 20k, 20k+9 or 20k-9. Also number of partitions in which no odd part is repeated, with at most 4 parts of size less than or equal to 2 and where differences between parts at distance 4 are greater than 1 when the smallest part is odd and greater than 2 when the smallest part is even.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =7a(7) =10a(8) =12a(9) =15a(10) =19a(11) =25a(12) =31a(13) =37a(14) =47a(15) =59a(16) =71a(17) =85a(18) =104a(19) =127a(20) =152a(21) =180a(22) =216a(23) =260a(24) =307a(25) =360a(26) =427a(27) =506a(28) =592a(29) =690
External references
- oeis: A036028