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 A152756 Bisection of A000533. 5
 1, 101, 10001, 1000001, 100000001, 10000000001, 1000000000001, 100000000000001, 10000000000000001, 1000000000000000001, 100000000000000000001, 10000000000000000000001 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(1)=1, for n>1, a(n) is the concatenation of "1", 2(n-1)-1 digits "0" and "1". [From Omar E. Pol, Dec 14 2008] LINKS FORMULA Except the first term, a(n)=10^(2n)+1. - Robert G. Wilson v, Dec 14 2008 G.f.: (1-100*x^2)/(1-x)/(1-100*x)) - Robert Israel, Jul 27 2014 EXAMPLE n ..... a(n) 1 ....... 1 2 ...... 101 3 ..... 10001 4 .... 1000001 5 ... 100000001 PROG (MAGMA) [1] cat [10^(2*n)+1: n in [1..15]]; // Vincenzo Librandi, Jul 27 2014 CROSSREFS Cf. A000533, A135577, A138120, A138146. Sequence in context: A217677 A291990 A303572 * A265172 A153500 A262861 Adjacent sequences:  A152753 A152754 A152755 * A152757 A152758 A152759 KEYWORD easy,nonn,less AUTHOR Omar E. Pol, Dec 13 2008 STATUS approved

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Last modified January 20 14:40 EST 2019. Contains 319333 sequences. (Running on oeis4.)