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A087100 A000225 (2^n - 1) interlaced with A008593 (11n). 1
0, 1, 11, 3, 22, 7, 33, 15, 44, 31, 55, 63, 66, 127, 77, 255, 88, 511, 99, 1023, 110, 2047, 121, 4095, 132, 8191, 143, 16383, 154, 32767, 165, 65535, 176, 131071, 187, 262143, 198, 524287, 209, 1048575, 220, 2097151, 231, 4194303, 242, 8388607, 253 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..46.

Index entries for linear recurrences with constant coefficients, signature (0,4,0,-5,0,2).

FORMULA

From Chai Wah Wu, Feb 02 2021: (Start)

a(n) = 4*a(n-2) - 5*a(n-4) + 2*a(n-6) for n > 5.

G.f.: x*(22*x^3 + x^2 - 11*x - 1)/((x - 1)^2*(x + 1)^2*(2*x^2 - 1)). (End)

MATHEMATICA

Rest[With[{nn=30}, Riffle[2^Range[0, nn]-1, 11Range[0, nn]]]] (* Harvey P. Dale, Aug 15 2011 *)

CROSSREFS

Cf. A063914, A087098, A086848.

Sequence in context: A088653 A317311 A107598 * A298256 A298927 A102380

Adjacent sequences:  A087097 A087098 A087099 * A087101 A087102 A087103

KEYWORD

easy,nonn

AUTHOR

Jeremy Gardiner, Aug 10 2003

STATUS

approved

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Last modified December 1 22:12 EST 2021. Contains 349435 sequences. (Running on oeis4.)