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Revision History for A068820

(Underlined text is an addition; strikethrough text is a deletion.)

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A068820 Ulam numbers that are primes.
(history; published version)
#8 by Peter Luschny at Fri Apr 05 18:13:00 EDT 2019
STATUS

editing

approved

#7 by Peter Luschny at Fri Apr 05 18:12:23 EDT 2019
MAPLE

# Function 'UlamList' is defined in A002858.

UlamPrimes := n -> select(k->isprime(k), UlamList(n)):

UlamPrimes(403); # Peter Luschny, Apr 05 2019

STATUS

approved

editing

#6 by Charles R Greathouse IV at Mon May 13 01:54:06 EDT 2013
LINKS

_Charles R Greathouse IV_, <, <a href="/A068820/b068820.txt">Table of n, a(n) for n = 1..49221</a>

Discussion
Mon May 13 01:54 
OEIS Server: https://oeis.org/edit/global/1915
#5 by Charles R Greathouse IV at Mon May 13 01:48:12 EDT 2013
LINKS

_Charles R Greathouse IV, <_, <a href="/A068820/b068820.txt">Table of n, a(n) for n = 1..49221</a>

Discussion
Mon May 13 01:48 
OEIS Server: https://oeis.org/edit/global/1914
#4 by Russ Cox at Sat Mar 31 13:50:44 EDT 2012
AUTHOR

_Naohiro Nomoto (n_nomoto(AT)yabumi.com), _, Mar 29 2002

Discussion
Sat Mar 31 13:50 
OEIS Server: https://oeis.org/edit/global/907
#3 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010
LINKS

Charles R Greathouse IV, <a href="="/A068820/b068820.txt">Table of n, a(n) for n = 1..49221</a>

KEYWORD

easy,nonn,new

#2 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010
LINKS

Charles R Greathouse IV, <a href="b068820.txt">Table of n, a(n) for n = 1..49221</a>

KEYWORD

easy,nonn,new

#1 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003
NAME

Ulam numbers that are primes.

DATA

2, 3, 11, 13, 47, 53, 97, 131, 197, 241, 409, 431, 607, 673, 739, 751, 983, 991, 1103, 1433, 1489, 1531, 1553, 1709, 1721, 2371, 2393, 2447, 2633, 2789, 2833, 2897, 3041, 3109, 3217, 3371, 3373, 3527, 3547, 3593, 3671, 3691, 4057, 4153, 4211, 4297, 4363

OFFSET

1,1

CROSSREFS

Cf. A002858.

KEYWORD

easy,nonn

AUTHOR

Naohiro Nomoto (n_nomoto(AT)yabumi.com), Mar 29 2002

STATUS

approved

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Last modified August 18 15:07 EDT 2024. Contains 375269 sequences. (Running on oeis4.)