A213784/12.

Terms

a(0) =1a(1) =7a(2) =17a(3) =38a(4) =95a(5) =452a(6) =837a(7) =917a(8) =1138a(9) =1495a(10) =2317a(11) =3048a(12) =3608a(13) =5232a(14) =6002a(15) =7298a(16) =7315a(17) =7843a(18) =8278a(19) =8932a(20) =10017a(21) =10955a(22) =13458a(23) =13793a(24) =14053a(25) =14970a(26) =15593a(27) =15872a(28) =16485a(29) =17777