Number of triangular partitions of n of order 7.

Terms

a(0) =1a(1) =7a(2) =28a(3) =90a(4) =252a(5) =635a(6) =1484a(7) =3267a(8) =6841a(9) =13744a(10) =26652a(11) =50108a(12) =91687a(13) =163772a(14) =286258a(15) =490654a(16) =826150a(17) =1368531a(18) =2233217a(19) =3594021a(20) =5709962a(21) =8963382a(22) =13913499a(23) =21371213a(24) =32503004a(25) =48973999a(26) =73143903a(27) =108333902a(28) =159187796a(29) =232158188