The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A055946 n + reversal of base 3 digits of n (written in base 10). 3
 0, 2, 4, 4, 8, 12, 8, 12, 16, 10, 20, 30, 16, 26, 36, 22, 32, 42, 20, 30, 40, 26, 36, 46, 32, 42, 52, 28, 56, 84, 40, 68, 96, 52, 80, 108, 40, 68, 96, 52, 80, 108, 64, 92, 120, 52, 80, 108, 64, 92, 120, 76, 104, 132, 56, 84, 112, 68, 96, 124, 80, 108, 136, 68, 96, 124, 80 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS If n has an even number of digits in base 3 then a(n) is a multiple of 4 LINKS Seiichi Manyama, Table of n, a(n) for n = 0..10000 FORMULA a(n) =n+A030102(n) MAPLE A055946 := proc(n)     n+A030102(n) ; end proc: # R. J. Mathar, May 28 2016 MATHEMATICA Array[#+FromDigits[Reverse[IntegerDigits[#, 3]], 3]&, 70, 0] (* Harvey P. Dale, Nov 09 2017 *) CROSSREFS Cf. A056964. Sequence in context: A223317 A027131 A319803 * A130124 A265417 A076342 Adjacent sequences:  A055943 A055944 A055945 * A055947 A055948 A055949 KEYWORD base,nonn AUTHOR Henry Bottomley, Jul 18 2000 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified January 19 04:09 EST 2020. Contains 331031 sequences. (Running on oeis4.)