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A028400 (2^n + 1)^2. 5
4, 9, 25, 81, 289, 1089, 4225, 16641, 66049, 263169, 1050625, 4198401, 16785409, 67125249, 268468225, 1073807361, 4295098369, 17180131329, 68720001025, 274878955521, 1099513724929, 4398050705409, 17592194433025 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

REFERENCES

I. Strazdins, Universal affine classification of Boolean functions, Acta Applic. Math. 46 (1997), 147-167.

LINKS

Illustration of initial terms from H. Bottomley

CROSSREFS

Sequence in context: A133022 A184326 A176497 * A117678 A167045 A055851

Adjacent sequences:  A028397 A028398 A028399 * A028401 A028402 A028403

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 14:02 EST 2012. Contains 205811 sequences.