Number of twice-partitions of n into distinct constant partitions.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =11a(6) =18a(7) =28a(8) =48a(9) =69a(10) =105a(11) =158a(12) =240a(13) =343a(14) =503a(15) =720a(16) =1041a(17) =1459a(18) =2062a(19) =2874a(20) =4047a(21) =5547a(22) =7656a(23) =10472a(24) =14322a(25) =19360a(26) =26214a(27) =35192a(28) =47354a(29) =63030