id:A056559 - OEIS Search Results

Search: id:A056559

Displaying 1-1 of 1 results found.

page 1

Tetrahedron with T(t,n,k)=t-n; succession of growing finite triangles with declining values per row.

+0
8

0, 1, 0, 0, 2, 1, 1, 0, 0, 0, 3, 2, 2, 1, 1, 1, 0, 0, 0, 0, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2 (list; graph; listen)

	OFFSET	`0,5`
	FORMULA	`a(n) =A056556(n)-A056557(n)`
	EXAMPLE	`First triangle: [0]; second triangle: [1; 0 0]; third triangle: [2; 1 1; 0 0 0]; ...`
	CROSSREFS	`Together with A056558 and A056560 might enable reading "by antidiagonals" of cube arrays as 3-dimensional analogue of A002262 and A025581 with square arrays.` `Sequence in context: A076879 A025901 A143809 this_sequence A117200 A107015 A015374` `Adjacent sequences: A056556 A056557 A056558 this_sequence A056560 A056561 A056562`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Jun 26 2000`

page 1

Search completed in 0.002 seconds

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research