Erroneous version of A046142.

Terms

a(0) =1a(1) =7a(2) =33a(3) =185a(4) =553a(5) =1233a(6) =2321a(7) =3913a(8) =6105a(9) =8993a(10) =12673a(11) =17241a(12) =22793a(13) =29425a(14) =37233a(15) =46313a(16) =56761a(17) =68673a(18) =82145a(19) =97273a(20) =114153a(21) =132881a(22) =153553a(23) =176265a(24) =201113a(25) =228193a(26) =257601a(27) =289433a(28) =323785a(29) =360753