a(n) = 2*1 + 4*3 + 6*5 + 8*7 + 10*9 + 12*11 + ... + (up to the n-th term).

Terms

a(0) =2a(1) =2a(2) =6a(3) =14a(4) =20a(5) =44a(6) =52a(7) =100a(8) =110a(9) =190a(10) =202a(11) =322a(12) =336a(13) =504a(14) =520a(15) =744a(16) =762a(17) =1050a(18) =1070a(19) =1430a(20) =1452a(21) =1892a(22) =1916a(23) =2444a(24) =2470a(25) =3094a(26) =3122a(27) =3850a(28) =3880a(29) =4720