A246167 - OEIS

A246167

Positions where distinct new values of A246271 appear for the first time.

1, 2, 5, 21, 46, 55, 66, 91, 574, 1362, 1419, 1654, 3497, 4607, 5263, 6463, 430261, 545869, 554111, 567583, 574823, 589843, 8781429, 14635735, 20490043

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OFFSET

1,2

COMMENTS

As this is the sequence A246280 sorted into ascending order, this is also expected to grow roughly as a(n) ~ 2^(n-1). (In this sequence we use one-based indexing.) Please see comments in A246280.

The corresponding new values at A246271(a(n)) are 0, 1, 2, 6, 7, 5, 3, 4, 11, 8, 10, 9, 15, 14, 13, 12, 17, 21, 20, 19, 18, 16, 24, 23, 22, ... (which is a permutation of the nonnegative integers).

LINKS

Table of n, a(n) for n=1..25.

PROG

(Scheme, with Antti Karttunen's IntSeq-library):

;; (This implementation is quite inefficient. Larger terms were grepped from the large b-file computed for A246271 with a PARI program given in that entry)

(define A246167 (DISTINCT-POS 1 1 A246271))

CROSSREFS

Cf. A003961, A246271, A246280.

Sequence in context: A266950 A328689 A039777 * A359725 A000941 A000131

Adjacent sequences: A246164 A246165 A246166 * A246168 A246169 A246170

KEYWORD

nonn,more

AUTHOR

Antti Karttunen, Aug 23 2014

STATUS

approved