Number of partitions of n having exactly one part that is a multiple of 3.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =2a(6) =3a(7) =5a(8) =7a(9) =10a(10) =14a(11) =20a(12) =26a(13) =36a(14) =47a(15) =62a(16) =80a(17) =104a(18) =132a(19) =169a(20) =212a(21) =267a(22) =332a(23) =414a(24) =510a(25) =629a(26) =769a(27) =941a(28) =1142a(29) =1386