The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A273938 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A273938

Sum of the divisors of the n-th odd prime power.
(history; published version)

#15 by Michel Marcus at Sun Jun 26 05:38:53 EDT 2016

STATUS

reviewed

approved

#14 by R. J. Mathar at Sat Jun 25 12:51:36 EDT 2016

STATUS

proposed

reviewed

Discussion

Sat Jun 25

12:52

R. J. Mathar: The thing that is actually wrong is the offset of A061345, which I will not change.

13:00

Omar E. Pol: I. see. The formula has been corrected.

#13 by R. J. Mathar at Sat Jun 25 12:51:08 EDT 2016

STATUS

editing

proposed

#12 by R. J. Mathar at Sat Jun 25 12:50:49 EDT 2016

OFFSET

0,1,2

FORMULA

a(n) = A000203(A061345(n-1)).

MAPLE

numtheory[sigma](A061345(n-1)) ;

#11 by Alois P. Heinz at Fri Jun 24 15:42:12 EDT 2016

STATUS

proposed

editing

Discussion

Fri Jun 24

15:43

Alois P. Heinz: I will inform R. J. Mathar, so please wait.

15:52

Omar E. Pol: Thank you very much.

#10 by Omar E. Pol at Fri Jun 24 15:32:34 EDT 2016

STATUS

editing

proposed

Discussion

Fri Jun 24

15:42

Alois P. Heinz: Yes, correct.  The problem is the second Maple procedure for A061345 (which is used here), which gives a shifted sequence and A061345(0) gives an error.

#9 by Omar E. Pol at Fri Jun 24 15:30:06 EDT 2016

OFFSET

1,0,2

STATUS

approved

editing

Discussion

Fri Jun 24

15:32

Omar E. Pol: New offset in accordance with A061345. See the formula.
It's OK?

#8 by R. J. Mathar at Sun Jun 05 09:18:58 EDT 2016

STATUS

reviewed

approved

#7 by Joerg Arndt at Sun Jun 05 01:23:53 EDT 2016

STATUS

proposed

reviewed

#6 by Michel Marcus at Sun Jun 05 00:36:00 EDT 2016

STATUS

editing

proposed