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A007395 Constant sequence: the all 2's sequence.
(Formerly M0208)
43
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Continued fraction for 1+sqrt(2) . - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 14 2006

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Daniele A. Gewurz and Francesca Merola, Sequences realized as Parker vectors ..., J. Integer Seqs., Vol. 6, 2003.

R. H. Hardin, Binary arrays with both rows and cols sorted, symmetries

Tanya Khovanova, Recursive Sequences

Eric Weisstein's World of Mathematics, Hamiltonian Cycle

Index entries for recurrences a(n) = k*a(n - 1) +/- a(n - 2)

Index entries for sequences related to linear recurrences with constant coefficients, signature (1).

FORMULA

G.f.: 2/(1-x), and e.g.f.: 2*e^x [From Mohammad K. Azarian (azarian(AT)evansville.edu), Dec 22 2008]

MATHEMATICA

Table[2, {105}]

CROSSREFS

Cf. A000004, A000012, A010701.

Sequence in context: A084100 A130130 A046698 * A036453 A040000 A055642

Adjacent sequences:  A007392 A007393 A007394 * A007396 A007397 A007398

KEYWORD

nonn,easy

AUTHOR

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

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Last modified February 4 10:57 EST 2012. Contains 204808 sequences.