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A056463 Number of primitive (aperiodic) palindromes using exactly two different symbols. 2
0, 0, 2, 2, 6, 4, 14, 12, 28, 24, 62, 54, 126, 112, 246, 240, 510, 476, 1022, 990, 2030, 1984, 4094, 4020, 8184, 8064, 16352, 16254, 32766, 32484, 65534 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

REFERENCES

M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.

FORMULA

Sum mu(d)*A056453(n/d) where d divides n.

CROSSREFS

Cf. A056458.

Sequence in context: A190940 A046203 A100495 * A005992 A067045 A083467

Adjacent sequences:  A056460 A056461 A056462 * A056464 A056465 A056466

KEYWORD

nonn

AUTHOR

Marks R. Nester (nesterm(AT)dpi.qld.gov.au)

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Last modified February 16 17:48 EST 2012. Contains 205939 sequences.