id:A068889 - OEIS Search Results

Search: id:A068889

Displaying 1-1 of 1 results found.

page 1

Triangular numbers with property that digits alternate in parity individually as well as in concatenation with previous terms.

+0
1

1, 6, 10, 36, 78, 105, 210, 325, 496, 561, 630, 703, 2145, 5050, 6105, 8385, 23653, 30381, 41616, 50721, 67896, 70125, 81810, 90525, 210925, 214185 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A068882.` `Sequence in context: A121801 A032740 A025629 this_sequence A038264 A094890 A047178` `Adjacent sequences: A068886 A068887 A068888 this_sequence A068890 A068891 A068892`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 20 2002`

page 1

Search completed in 0.002 seconds

Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.

AT&T Labs Research