id:A056904 - OEIS Search Results

Search: id:A056904

Displaying 1-1 of 1 results found.

page 1

Floor[p/24] where p is a prime which is 4 more than a square.

+0
5

0, 0, 1, 2, 7, 9, 12, 30, 45, 51, 57, 84, 92, 135, 176, 187, 222, 301, 315, 376, 392, 442, 551, 570, 651, 759, 782, 900, 1001, 1107, 1162, 1305, 1395, 1552, 1717, 1785, 1926, 1962, 2262, 2301, 2460, 2501, 2667, 2709, 2926, 2970, 3151, 3197, 3432, 3577, 3825 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`a(n) =floor[A005473(n)/24]`
	EXAMPLE	`a(2)=1 since 29 is a prime which is four more than a square and floor[29/24]=1`
	CROSSREFS	`a(n) is contained in A001840. A005473(n)=24*a(n)+m, where m=13 if a(n) is three times a triangular number (and n>0) i.e. in A045943, and m=5 if A056904(n) is not three times a triangular number (or n=0) i.e. in A001318.` `Sequence in context: A090348 A049638 A059649 this_sequence A077470 A047352 A074244` `Adjacent sequences: A056901 A056902 A056903 this_sequence A056905 A056906 A056907`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Jul 06 2000`

page 1

Search completed in 0.002 seconds

Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research