A013735 -id:A013735 - cp's OEIS frontend

A013733 a(n) = 3^(3n+2).

9, 243, 6561, 177147, 4782969, 129140163, 3486784401, 94143178827, 2541865828329, 68630377364883, 1853020188851841, 50031545098999707, 1350851717672992089, 36472996377170786403, 984770902183611232881, 26588814358957503287787

Offset: 0

N. J. A. Sloane

Additive digital root of a(n) is equal to 9. - Miquel Cerda, Oct 31 2016

Vincenzo Librandi, Table of n, a(n) for n = 0..200
Tanya Khovanova, Recursive Sequences
Index entries for linear recurrences with constant coefficients, signature (27).

Cf. A013731, A013732, A013735, A013737.

[3^(3*n+2): n in [0..25]]; // Vincenzo Librandi, May 25 2011

seq(3^(3*n+2),n=0..15); # Nathaniel Johnston, Jun 26 2011

Table[3^(3n+2), {n,0,100}] (* Wesley Ivan Hurt, Oct 24 2013 *)

a(n)=3^(3*n+2) \\ Charles R Greathouse IV, Jul 11 2016

a(n)=27*a(n-1), n>0 ; a(0)=9 . G.f.: 9/(1-27*x). - Philippe Deléham, Nov 25 2008

A013713 a(n) = 8^(2n+1).

Original entry on oeis.org

8, 512, 32768, 2097152, 134217728, 8589934592, 549755813888, 35184372088832, 2251799813685248, 144115188075855872, 9223372036854775808, 590295810358705651712, 37778931862957161709568, 2417851639229258349412352

Offset: 0

N. J. A. Sloane

Additive digital root of a(n) = 8. - Miquel Cerda, Jul 03 2016

Vincenzo Librandi, Table of n, a(n) for n = 0..160
Tanya Khovanova, Recursive Sequences
Index entries for linear recurrences with constant coefficients, signature (64).

Cf. A001018, A013734, A013735, A089357.

[8^(2*n+1): n in [0..20]]; // Vincenzo Librandi, May 25 2011

8^(2*Range[0,20]+1) (* or *) NestList[64#&,8,20] (* Harvey P. Dale, Feb 27 2013 *)

x='x+O('x^99); Vec(8/(1-64*x)) \\ Altug Alkan, Jul 09 2016

a(n)=8<<(3*n) \\ Charles R Greathouse IV, Jul 11 2016

a(n) = 64a(n-1), n>0. O.g.f.: 8/(1-64x). - R. J. Mathar, May 07 2008
a(n) = 8*A089357(n) = 2*A013734(n) = A013735(n)/2 . - Philippe Deléham, Nov 24 2008
From Ilya Gutkovskiy, Jul 03 2016: (Start)
E.g.f.: 8*exp(64*x).
a(n) = A001018(A005408(n)). (End)

A013734 a(n) = 4^(3*n+1).

Original entry on oeis.org

4, 256, 16384, 1048576, 67108864, 4294967296, 274877906944, 17592186044416, 1125899906842624, 72057594037927936, 4611686018427387904, 295147905179352825856, 18889465931478580854784, 1208925819614629174706176

Offset: 0

N. J. A. Sloane

Additive digital root of a(n) = 4. - Miquel Cerda, Jul 02 2016

Vincenzo Librandi, Table of n, a(n) for n = 0..160
Tanya Khovanova, Recursive Sequences
Index entries for linear recurrences with constant coefficients, signature (64).

Cf. A013735.

[4^(3*n+1): n in [0..20]]; // Vincenzo Librandi, May 25 2011

seq(4^(3*n+1),n=0..13); # Nathaniel Johnston, Jun 26 2011

4^(3*Range[0,20]+1) (* or *) NestList[64#&,4,20] (* Harvey P. Dale, Feb 22 2016 *)

Vec(4/(1-64*x) + O(x^99)) \\ Altug Alkan, Jul 05 2016

a(n)=2^(6*n+2) \\ Charles R Greathouse IV, Jul 11 2016

a(n) = 64*a(n-1), n>0 ; a(0)=4. G.f.: 4/(1-64*x). a(n)=4*A089357(n). - Philippe Deléham, Nov 24 2008

E.g.f.: 4*exp(64*x). - Ilya Gutkovskiy, Jul 02 2016

cp's OEIS Frontend

A013733 a(n) = 3^(3n+2).

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A013713 a(n) = 8^(2n+1).

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A013734 a(n) = 4^(3*n+1).

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