The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A116064 Powerful numbers (A001694) made of nontrivial runs of identical digits. 2
 7744, 665500, 774400, 5556600, 6655000, 7744000, 55566000, 66550000, 77440000, 447722888, 448855888, 555660000, 665500000, 774400000, 1155775544, 5500002244, 5511005500, 5556600000, 6655000000, 7744000000, 11000004488, 11122233444, 22244466888 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A run of length 1 is trivial. LINKS Amiram Eldar, Table of n, a(n) for n = 1..201 (terms below 10^18) Index entries for sequences related to powerful numbers. EXAMPLE 448855888 = 2^4*13^3*113^2. CROSSREFS Intersection of A001694 and A033023. Sequence in context: A116282 A187958 A052050 * A052070 A052099 A079035 Adjacent sequences: A116061 A116062 A116063 * A116065 A116066 A116067 KEYWORD nonn,base AUTHOR Giovanni Resta, Feb 13 2006 EXTENSIONS a(16)-a(23) from Donovan Johnson, Jun 29 2011 STATUS approved

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

Last modified August 10 15:26 EDT 2024. Contains 375056 sequences. (Running on oeis4.)