id:A056138 - OEIS Search Results

Search: id:A056138

Displaying 1-1 of 1 results found.

page 1

Number of ways in which n can be the shorter leg (shortest side) of an integer sided right angled triangle.

+0
2

0, 0, 1, 0, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 3, 2, 1, 2, 1, 3, 3, 1, 1, 4, 2, 1, 3, 3, 1, 3, 1, 3, 4, 1, 3, 5, 1, 1, 4, 5, 1, 3, 1, 3, 5, 1, 1, 7, 2, 2, 4, 3, 1, 3, 3, 5, 4, 1, 1, 9, 1, 1, 5, 4, 4, 4, 1, 3, 4, 3, 1 (list; graph; listen)

	OFFSET	`1,9`
	FORMULA	`a(n) = A046079(n)-A056137(n) = A046081(n)-A046080(n)-A056137(n)`
	CROSSREFS	`Cf. A009004, A055525, A055527.` `Sequence in context: A072038 A108316 A145574 this_sequence A067594 A089533 A054390` `Adjacent sequences: A056135 A056136 A056137 this_sequence A056139 A056140 A056141`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Jun 15 2000`

page 1

Search completed in 0.002 seconds

Last modified December 21 10:15 EST 2009. Contains 171081 sequences.

AT&T Labs Research