A006606 Nonperiodic autocorrelation functions of length n.

1, 2, 3, 6, 10, 20, 36, 72, 135, 272, 528, 1048, 2080, 4160, 8242, 16500, 32895, 65750, 131328, 262612, 524733, 1049600, 2098176, 4195930, 8390620, 16781312, 33558177, 67116876, 134225920, 268450626, 536887270

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn

References

• N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
• E. G. Whitehead, Jr., Autocorrelation of (+1,-1) sequences, pp. 329-336 of Combinatorial Mathematics (Canberra, 1977), Lect. Notes Math. 686, 1978. [From Jayadev Acharya (jayadev(AT)ucsd.edu), Aug 20 2009]

Links

• E. G. Whitehead, Jr., Autocorrelation of (+1,-1) sequences. [From Jayadev Acharya (jayadev(AT)ucsd.edu), Aug 20 2009]

Extensions

More terms from a(16) Jayadev Acharya (jayadev(AT)ucsd.edu), Aug 20 2009

a(22)-a(31) from Sean A. Irvine, May 13 2017