House numbers (version 2): a(n) = (n+1)^3 + (n+1)*Sum_{i=0..n} i.

Terms

a(0) =1a(1) =10a(2) =36a(3) =88a(4) =175a(5) =306a(6) =490a(7) =736a(8) =1053a(9) =1450a(10) =1936a(11) =2520a(12) =3211a(13) =4018a(14) =4950a(15) =6016a(16) =7225a(17) =8586a(18) =10108a(19) =11800a(20) =13671a(21) =15730a(22) =17986a(23) =20448a(24) =23125a(25) =26026a(26) =29160a(27) =32536a(28) =36163a(29) =40050