Number of partitions of n such that 4*(least part) + 1 = greatest part.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =1a(7) =2a(8) =3a(9) =5a(10) =8a(11) =10a(12) =14a(13) =19a(14) =25a(15) =33a(16) =41a(17) =51a(18) =65a(19) =79a(20) =97a(21) =116a(22) =140a(23) =165a(24) =198a(25) =233a(26) =272a(27) =316a(28) =369a(29) =422