The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A343255 a(n) is obtained by replacing 2's by n's in the hereditary base-2 expansion of n. 1
 0, 1, 2, 4, 256, 3126, 46662, 823551, 134217728, 3486784402, 100000000010, 3138428376733, 115909305827328, 4240251492291543, 166680102383370254, 7006302246093750016 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS The next term, a(16), has 22212093154093428530 digits, and is too large to include. LINKS Table of n, a(n) for n=0..15. Wikipedia, Hereditary base-n notation FORMULA a(n) = A342707(n, n). EXAMPLE For n = 5: - 5 = 2^2^2^0 + 2^0, - so a(5) = 5^5^5^0 + 5^0 = 3126. CROSSREFS Cf. A054382, A342707. Sequence in context: A173566 A271551 A058990 * A262413 A363039 A012437 Adjacent sequences: A343252 A343253 A343254 * A343256 A343257 A343258 KEYWORD nonn AUTHOR Rémy Sigrist, Jun 04 2021 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 May 30 01:30 EDT 2024. Contains 372954 sequences. (Running on oeis4.)