The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A374193

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A374193

a(n) is the smallest number which can be represented as the sum of two nonzero pentagonal pyramidal numbers in exactly n ways, or -1 if no such number exists.
(history; published version)

#14 by N. J. A. Sloane at Mon Jul 01 13:11:49 EDT 2024

STATUS

proposed

approved

#13 by Pontus von Brömssen at Mon Jul 01 08:19:48 EDT 2024

STATUS

editing

proposed

#12 by Pontus von Brömssen at Mon Jul 01 08:19:29 EDT 2024

KEYWORD

nonn,hard,more,bref,new

STATUS

approved

editing

#11 by Joerg Arndt at Mon Jul 01 01:53:41 EDT 2024

STATUS

reviewed

approved

#10 by Michel Marcus at Mon Jul 01 01:39:40 EDT 2024

STATUS

proposed

reviewed

#9 by Michael S. Branicky at Mon Jul 01 00:56:12 EDT 2024

STATUS

editing

proposed

#8 by Michael S. Branicky at Mon Jul 01 00:56:09 EDT 2024

COMMENTS

There are no further positive terms <= 10^15 (unless they are -1). - Michael S. Branicky, Jul 01 2024

STATUS

proposed

editing

#7 by Michael S. Branicky at Mon Jul 01 00:54:21 EDT 2024

STATUS

editing

proposed

#6 by Michael S. Branicky at Mon Jul 01 00:54:19 EDT 2024

COMMENTS

There are no further terms <= 10^15 (unless they are -1). - Michael S. Branicky, Jul 01 2024

STATUS

approved

editing

#5 by N. J. A. Sloane at Sun Jun 30 22:12:38 EDT 2024

STATUS

proposed

approved