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A249166 Odd integers concatenated with themselves. 0
11, 33, 55, 77, 99, 1111, 1313, 1515, 1717, 1919, 2121, 2323, 2525, 2727, 2929, 3131, 3333, 3535, 3737, 3939, 4141, 4343, 4545, 4747, 4949, 5151, 5353, 5555, 5757, 5959, 6161, 6363, 6565, 6767, 6969, 7171, 7373, 7575, 7777, 7979, 8181, 8383, 8585, 8787 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Bisection (every other term) of A020338. See A248422 for the complement.

LINKS

Table of n, a(n) for n=1..44.

PROG

(PARI) a(n) = eval(Str(2*n-1, 2*n-1))

(MAGMA) [Seqint(Intseq(n) cat Intseq(n)): n in [1..99 by 2]]

CROSSREFS

Cf. A020338, A248422.

Sequence in context: A029516 A061833 A132285 * A296543 A152740 A080859

Adjacent sequences:  A249163 A249164 A249165 * A249167 A249168 A249169

KEYWORD

nonn,base

AUTHOR

M. F. Hasler, Oct 22 2014

STATUS

approved

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Last modified November 13 10:50 EST 2019. Contains 329093 sequences. (Running on oeis4.)