The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A343676 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A343676

Number of n-digit undulating alternating primes.
(history; published version)

#19 by Alois P. Heinz at Tue Apr 27 07:54:55 EDT 2021

STATUS

reviewed

approved

#18 by Michel Marcus at Tue Apr 27 04:52:31 EDT 2021

STATUS

proposed

reviewed

#17 by Martin Ehrenstein at Tue Apr 27 04:24:28 EDT 2021

STATUS

editing

proposed

#16 by Martin Ehrenstein at Tue Apr 27 04:21:54 EDT 2021

DATA

4, 9, 23, 49, 175, 321, 1189, 3025, 12111, 28492, 113409, 251513, 1068440, 2629980, 11690210, 28498852, 128871588, 298890814, 1309837146

EXTENSIONS

a(18)-a(19) from Martin Ehrenstein, Apr 27 2021

STATUS

approved

editing

#15 by N. J. A. Sloane at Mon Apr 26 20:54:54 EDT 2021

STATUS

proposed

approved

#14 by Chai Wah Wu at Mon Apr 26 13:36:22 EDT 2021

STATUS

editing

proposed

#13 by Chai Wah Wu at Mon Apr 26 13:36:07 EDT 2021

COMMENTS

a(n) <= A057333(n).

CROSSREFS

Cf. A002385, A030144, A057333, A059168, A343590, A343675.

STATUS

proposed

editing

#12 by Omar E. Pol at Mon Apr 26 10:20:03 EDT 2021

STATUS

editing

proposed

Discussion

Mon Apr 26

10:20

Omar E. Pol: Done.

#11 by Omar E. Pol at Mon Apr 26 10:19:58 EDT 2021

NAME

Number of n-digit undulating alternating primes.

KEYWORD

nonn,base,more,changed

STATUS

proposed

editing

#10 by Chai Wah Wu at Mon Apr 26 10:17:33 EDT 2021

STATUS

editing

proposed

Discussion

Mon Apr 26

10:18

Michel Marcus: needs keyword base