Even numbers of the form floor( binomial(2k, 2j)/binomial(k, j)).

Terms

a(0) =46a(1) =452a(2) =1618a(3) =2476a(4) =2926a(5) =3944a(6) =5628a(7) =7628a(8) =7830a(9) =10130a(10) =11688a(11) =13676a(12) =21190a(13) =21882a(14) =22598a(15) =24228a(16) =32848a(17) =40654a(18) =46974a(19) =64660a(20) =71574a(21) =72310a(22) =86306a(23) =90660a(24) =94222a(25) =112312a(26) =119290a(27) =143078a(28) =153884a(29) =167006