Number of 7's in the last section of the set of partitions of n.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =1a(7) =0a(8) =1a(9) =1a(10) =2a(11) =2a(12) =4a(13) =5a(14) =7a(15) =9a(16) =13a(17) =16a(18) =23a(19) =28a(20) =39a(21) =48a(22) =64a(23) =79a(24) =104a(25) =128a(26) =165a(27) =204a(28) =258a(29) =317