A143921 as tables, graphs or sounds

A143921 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`3`
`3`		`10`
`4`		`49`
`5`		`281`
`6`		`1975`
`7`		`15933`
`8`		`147457`
`9`		`1528282`
`10`		`17603351`
`11`		`222691261`
`12`		`3072168481`
`13`		`45882929925`
`14`		`737717712439`
`15`		`12703639993306`
`16`		`233281370579713`
`17`		`4550465650811445`
`18`		`93966210612477271`
`19`		`2047838398486924977`

[1,1,3,10,49,281,1975,15933,147457,1528282, 17603351,222691261,3072168481,45882929925, 737717712439,12703639993306,233281370579713, 4550465650811445,93966210612477271, 2047838398486924977]

Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research