The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A163535

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A163535

The absolute direction (0=east, 1=south, 2=west, 3=north) of the Peano curve A163336 at point n.
(history; published version)

#12 by Michel Marcus at Sun Aug 30 04:22:41 EDT 2020

STATUS

reviewed

approved

#11 by Joerg Arndt at Sun Aug 30 02:21:46 EDT 2020

STATUS

proposed

reviewed

#10 by Kevin Ryde at Sat Aug 29 04:40:23 EDT 2020

STATUS

editing

proposed

Discussion

Sat Aug 29

04:40

Kevin Ryde: Xref a(n) = A163535(A008591(n)), which is a self-ref, already comment a(n) = a(9*n).

05:54

Michel Marcus: maybe add A008591 in xref

08:19

Kevin Ryde: I'm removing A008591 as such :).

#9 by Kevin Ryde at Sat Aug 29 04:39:38 EDT 2020

FORMULA

a(n) = A004442(A163534(n)).

#8 by Kevin Ryde at Sat Aug 29 04:38:28 EDT 2020

CROSSREFS

a(n) = A163535(A008591(n)) = A004442(A163534(n)). See also A163537.

Cf. A163534 (transposed), A163537 (turn).

STATUS

approved

editing

#7 by Michel Marcus at Sat Aug 29 02:13:40 EDT 2020

STATUS

reviewed

approved

#6 by Joerg Arndt at Sat Aug 29 01:55:42 EDT 2020

STATUS

proposed

reviewed

#5 by Kevin Ryde at Sat Aug 29 00:55:49 EDT 2020

STATUS

editing

proposed

#4 by Kevin Ryde at Sat Aug 29 00:55:30 EDT 2020

NAME

The absolute direction (0=east, 1=south, 2=west, 3=north) taken by of the type II Hilbert's Hamiltonian walk Peano curve A163336 at the step point n.

LINKS

A. Antti Karttunen, <a href="/A163535/b163535.txt">Table of n, a(n) for n = 1..6561</a>

EXTENSIONS

Name corrected by Kevin Ryde, Aug 29 2020

STATUS

approved

editing

#3 by Russ Cox at Sat Mar 31 13:21:18 EDT 2012

AUTHOR

_Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), _, Aug 01 2009

Discussion

Sat Mar 31

13:21

OEIS Server: https://oeis.org/edit/global/881