The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A257229

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A257229

Pentatorial sequence.
(history; published version)

#20 by N. J. A. Sloane at Sat Jan 11 15:57:46 EST 2020

AUTHOR

_Natan Arie' Consigli_, Apr 18 2015

Discussion

Sat Jan 11

15:57

OEIS Server: https://oeis.org/edit/global/2842

#19 by N. J. A. Sloane at Wed Sep 09 10:49:55 EDT 2015

STATUS

proposed

approved

#18 by Natan Arie' Consigli at Thu Aug 27 13:49:40 EDT 2015

STATUS

editing

proposed

#17 by Natan Arie' Consigli at Thu Aug 27 13:49:08 EDT 2015

COMMENTS

a[n]b = b+1 for n<1 or and a[n]b = a[n-1]a...[n-1]a with a occurring (b times -1) otherwise.

Or equivalently, a[n]b = b+1 for n<1 and a[1]b = a+b or a[n]b = a[n-1]a...[n-1]a with a occurring b times otherwise.

STATUS

reviewed

editing

#16 by G. C. Greubel at Thu Aug 27 12:42:27 EDT 2015

STATUS

proposed

reviewed

#15 by Natan Arie' Consigli at Wed Aug 26 12:11:23 EDT 2015

STATUS

editing

proposed

#14 by Natan Arie' Consigli at Wed Aug 26 12:11:19 EDT 2015

COMMENTS

The sequence n[0k]! for nonpositive k is the sequence of all nonnegative integers. n[1]! are the triangular numbers. n[2]! is the factorial. n[3]! is exponential factorial or expofactorial or exponentorial. n[4]! the tetrational factorial or tetratorial. n[5]! the pentational factorial or pentatorial etc.

STATUS

proposed

editing

#13 by Natan Arie' Consigli at Wed Aug 26 12:09:09 EDT 2015

STATUS

editing

proposed

#12 by Natan Arie' Consigli at Wed Aug 26 12:09:05 EDT 2015

COMMENTS

a[n]b= b+1 for n<1 or a[n+1]b = a[n-1]a...[n-1]a with a occurring b times otherwise.

STATUS

proposed

editing

#11 by Natan Arie' Consigli at Thu Aug 13 01:59:19 EDT 2015

STATUS

editing

proposed