1,2

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

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

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

(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

Cf. A029837, A070941, A183079, A220347.

Sequence in context: A029118 A129382 A163515 * A274010 A213711 A072649

Adjacent sequences: A220345 A220346 A220347 * A220349 A220350 A220351

nonn

Reinhard Zumkeller, Dec 12 2012

approved