Numbers n such that 4n is a partition number.

Terms

a(0) =14a(1) =44a(2) =198a(3) =609a(4) =1401a(5) =112819a(6) =178805a(7) =207955a(8) =325039a(9) =580880a(10) =1021992a(11) =1772375a(12) =2029566a(13) =3033041a(14) =3949119a(15) =6635915a(16) =23167430a(17) =29528576a(18) =37549534a(19) =47642323a(20) =96069084a(21) =120875711a(22) =135486560a(23) =190250539a(24) =212844157a(25) =297227062a(26) =331927519a(27) =461087390a(28) =572830228