id:A015225 - OEIS Search Results

Search: id:A015225

Displaying 1-1 of 1 results found.

page 1

Odd hexagonal pyramidal numbers.

+0
1

1, 7, 95, 161, 525, 715, 1547, 1925, 3417, 4047, 6391, 7337, 10725, 12051, 16675, 18445, 24497, 26775, 34447, 37297, 46781, 50267, 61755, 65941, 79625, 84575, 100647, 106425, 125077, 131747, 153171, 160797, 185185, 193831, 221375, 231105 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`Odd numbers of the form n(n+1)(4n-1)/6`
	CROSSREFS	`Sequence in context: A134113 A071584 A132114 this_sequence A036337 A130183 A156961` `Adjacent sequences: A015222 A015223 A015224 this_sequence A015226 A015227 A015228`
	KEYWORD	`nonn`
	AUTHOR	`Mohammad K. Azarian (ma3(AT)evansville.edu)`
	EXTENSIONS	`More terms from Erich Friedman (erich.friedman(AT)stetson.edu).`

page 1

Search completed in 0.002 seconds

Last modified December 3 22:15 EST 2009. Contains 170310 sequences.

AT&T Labs Research