The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A018107 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A018107

Powers of fourth root of 21 rounded up.
(history; published version)

#8 by Jon E. Schoenfield at Mon Dec 27 21:13:37 EST 2021

STATUS

editing

approved

#7 by Jon E. Schoenfield at Mon Dec 27 21:13:36 EST 2021

AUTHOR

N. J. A. Sloane.

STATUS

approved

editing

#6 by Harvey P. Dale at Fri Jan 11 09:44:54 EST 2013

STATUS

editing

approved

#5 by Harvey P. Dale at Fri Jan 11 09:44:51 EST 2013

MATHEMATICA

Ceiling[Surd[21, 4]^Range[0, 30]] (* Harvey P. Dale, Jan 11 2013 *)

STATUS

approved

editing

#4 by Russ Cox at Fri Mar 30 16:46:23 EDT 2012

AUTHOR

_N. J. A. Sloane (njas(AT)research.att.com)_.

Discussion

Fri Mar 30

16:46

OEIS Server: https://oeis.org/edit/global/110

#3 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009

KEYWORD

nonn,new

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

#2 by N. J. A. Sloane at Sun Jun 14 03:00:00 EDT 1998

REFERENCES

KEYWORD

nonn,new

nonn

AUTHOR

njas [Possible errors corrected Aug 16 1996]

njas

#1 by N. J. A. Sloane at Wed Dec 11 03:00:00 EST 1996

NAME

Powers of fourth root of 21 rounded up.

DATA

1, 3, 5, 10, 21, 45, 97, 207, 441, 945, 2021, 4327, 9261, 19825, 42440, 90850, 194481, 416325, 891224, 1907839, 4084101, 8742816, 18715702, 40064613, 85766121, 183599119, 393029742, 841356859, 1801088541

OFFSET

0,2

REFERENCES

KEYWORD

nonn

AUTHOR

njas [Possible errors corrected Aug 16 1996]

STATUS

approved