A130221 as tables, graphs or sounds

A130221 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`5`
`4`		`12`
`5`		`37`
`6`		`158`
`7`		`667`
`8`		`2740`
`9`		`13461`
`10`		`74710`
`11`		`412095`
`12`		`2406880`
`13`		`15450541`
`14`		`103187698`
`15`		`715323395`
`16`		`5236160612`
`17`		`40014337437`
`18`		`318488475658`
`19`		`2637143123027`
`20`		`22603231117364`
`21`		`201268520010153`
`22`		`1855401760331982`
`23`		`17624602999352535`

[1,1,2,5,12,37,158,667,2740,13461,74710,412095, 2406880,15450541,103187698,715323395,5236160612, 40014337437,318488475658,2637143123027, 22603231117364,201268520010153,1855401760331982, 17624602999352535]

Last modified December 5 23:38 EST 2009. Contains 170428 sequences.

AT&T Labs Research