Nonperiodic autocorrelation functions of length n.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =10a(5) =20a(6) =36a(7) =72a(8) =135a(9) =272a(10) =528a(11) =1048a(12) =2080a(13) =4160a(14) =8242a(15) =16500a(16) =32895a(17) =65750a(18) =131328a(19) =262612a(20) =524733a(21) =1049600a(22) =2098176a(23) =4195930a(24) =8390620a(25) =16781312a(26) =33558177a(27) =67116876a(28) =134225920a(29) =268450626