A sequence related to M-partitions.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =6a(5) =8a(6) =13a(7) =15a(8) =21a(9) =29a(10) =37a(11) =45a(12) =62a(13) =70a(14) =89a(15) =108a(16) =132a(17) =151a(18) =191a(19) =210a(20) =256a(21) =296a(22) =350a(23) =390a(24) =476a(25) =516a(26) =610a(27) =684a(28) =795a(29) =869