id:A008332 - OEIS Search Results

Search: id:A008332

Displaying 1-1 of 1 results found.

page 1

Sum of divisors of p-1, p prime.

+0
1

1, 3, 7, 12, 18, 28, 31, 39, 36, 56, 72, 91, 90, 96, 72, 98, 90, 168, 144, 144, 195, 168, 126, 180, 252, 217, 216, 162, 280, 248, 312, 252, 270, 288, 266, 372, 392, 363, 252, 308, 270, 546, 360, 508, 399, 468, 576, 456, 342, 560, 450, 432, 744, 468, 511, 396, 476, 720, 672 (list; graph; listen)

	OFFSET	`2,2`
	MAPLE	`for i from 1 to 500 do if isprime(i) then print(sigma(i-1)); fi; od;`
	CROSSREFS	`Sequence in context: A122250 A024388 A109638 this_sequence A065390 A006317 A077043` `Adjacent sequences: A008329 A008330 A008331 this_sequence A008333 A008334 A008335`
	KEYWORD	`nonn`
	AUTHOR	`njas`

page 1

Search completed in 0.002 seconds

Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research