id:A076302 - OEIS Search Results

Search: id:A076302

Displaying 1-1 of 1 results found.

page 1

Triangle T(n,k) = number of k-smooth divisors of n, read by rows.

+0
1

1, 1, 2, 1, 1, 2, 1, 3, 3, 3, 1, 1, 1, 1, 2, 1, 2, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 2, 1, 4, 4, 4, 4, 4, 4, 4, 1, 1, 3, 3, 3, 3, 3, 3, 3, 1, 2, 2, 2, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 3, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 4, 4, 4, 4, 4, 4, 4, 4 (list; table; graph; listen)

	OFFSET	`1,3`
	COMMENT	`T(n,n)=A000005(n);` `T(n,2)=A001511(n) for n>1; T(n,3)=A072078(n) for n>2.`
	LINKS	`Eric Weisstein's World of Mathematics, Divisor Function.` `Eric Weisstein's World of Mathematics, Smooth Number.`
	EXAMPLE	`Triangle begins:` `.................. 1` `................ 1...2` `.............. 1...1...2` `............ 1...3...3...3` `.......... 1...1...1...1...2` `........ 1...2...4...4...4...4` `...... 1...1...1...1...1...1...2` `.... 1...4...4...4...4...4...4...4` `.. 1...1...3...3...3...3...3...3...3.`
	CROSSREFS	`Sequence in context: A088428 A025838 A105248 this_sequence A104524 A128807 A071628` `Adjacent sequences: A076299 A076300 A076301 this_sequence A076303 A076304 A076305`
	KEYWORD	`nonn,tabl`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 14 2003`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research