The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A355182 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A355182

a(n) = t(n) - s(n) where s(n) = n*(n-1)/2 is the sum of the first n nonnegative integers and t(n) is the smallest sum of consecutive integers starting from n such that t(n) > s(n).
(history; published version)

#49 by Michael De Vlieger at Wed Jul 20 22:37:52 EDT 2022

STATUS

reviewed

approved

#48 by Kevin Ryde at Wed Jul 20 21:24:25 EDT 2022

STATUS

proposed

reviewed

Discussion

Wed Jul 20

21:54

Jon E. Schoenfield: Thanks again, Kevin!

#47 by Michel Marcus at Wed Jul 20 02:26:21 EDT 2022

STATUS

editing

proposed

Discussion

Wed Jul 20

21:24

Kevin Ryde: Yes, beaut.

#46 by Michel Marcus at Wed Jul 20 02:26:13 EDT 2022

CROSSREFS

Cf. A288998.

STATUS

proposed

editing

#45 by Jon E. Schoenfield at Wed Jul 20 02:03:42 EDT 2022

STATUS

editing

proposed

Discussion

Wed Jul 20

02:03

Jon E. Schoenfield: (Thanks to Kevin Ryde for calling the problem to my attention!)

#44 by Jon E. Schoenfield at Wed Jul 20 02:03:27 EDT 2022

FORMULA

*** WARNING: THIS FORMULA GIVES WRONG RESULTS AT SOME VALUES OF n ***

*** I hope to fix it today or tomorrow, or otherwise delete it. ***

j = floor(sqrt(8*n^2 - 8*n - + 1)),

Discussion

Wed Jul 20

02:03

Jon E. Schoenfield: I think this fixes it.

#43 by Jon E. Schoenfield at Tue Jul 19 22:13:15 EDT 2022

FORMULA

*** WARNING: THIS FORMULA GIVES WRONG RESULTS AT SOME VALUES OF n ***

*** I hope to fix it today or tomorrow, or otherwise delete it. ***

STATUS

approved

editing

#42 by Michael De Vlieger at Thu Jul 14 22:43:32 EDT 2022

STATUS

reviewed

approved

#41 by Kevin Ryde at Thu Jul 14 22:26:02 EDT 2022

STATUS

proposed

reviewed

#40 by Chai Wah Wu at Thu Jul 14 22:07:50 EDT 2022

STATUS

editing

proposed