login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A220348 Number of row where n occurs in A183079. 3
1, 2, 3, 3, 4, 4, 4, 5, 5, 4, 5, 6, 6, 5, 5, 6, 7, 7, 6, 6, 5, 7, 8, 8, 7, 7, 6, 5, 8, 9, 9, 8, 8, 7, 6, 6, 9, 10, 10, 9, 9, 8, 7, 7, 6, 10, 11, 11, 10, 10, 9, 8, 8, 7, 5, 11, 12, 12, 11, 11, 10, 9, 9, 8, 6, 6, 12, 13, 13, 12, 12, 11, 10, 10, 9, 7, 7, 7, 13 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A183079 seen as flattened sequence is a permutation of the natural numbers, therefore for each n there exists exactly 1 row in A183079 containing n.

In this sequence each n >= 2 occurs a total of 2^(n-2) times. - Antti Karttunen, May 18 2015

LINKS

Reinhard Zumkeller (first 250 terms) &  Antti Karttunen, Table of n, a(n) for n = 1..10440

FORMULA

a(n) = 1 + A029837(A220347(n)) = A070941(A220347(n)-1). - Antti Karttunen, May 18 2015

PROG

(Haskell)

import Data.List (findIndex)

import Data.Maybe (fromJust)

a220348 n = fromJust (findIndex (elem n) a183079_tabf) + 1

(Scheme, two variants)

(define (A220348 n) (+ 1 (A029837 (A220347 n))))

(define (A220348 n) (A070941 (+ -1 (A220347 n))))

;; Antti Karttunen, May 18 2015

CROSSREFS

Cf. A029837, A070941, A183079, A220347.

Sequence in context: A029118 A129382 A163515 * A274010 A213711 A072649

Adjacent sequences:  A220345 A220346 A220347 * A220349 A220350 A220351

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Dec 12 2012

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 19 18:30 EST 2019. Contains 320327 sequences. (Running on oeis4.)