A087660 as tables, graphs or sounds

A087660 formatted as a simple table:

`n`		`a(n)`
`0`		`4`
`1`		`25`
`2`		`228`
`3`		`2620`
`4`		`35164`
`5`		`527663`
`6`		`8613004`
`7`		`150142594`
`8`		`2759219428`
`9`		`52953913663`
`10`		`1053779339980`
`11`		`21624992868276`
`12`		`455655808661008`
`13`		`9823903635742978`
`14`		`216106936268122100`
`15`		`4839230922051864504`
`16`		`110093028451517403276`

[4,25,228,2620,35164,527663,8613004,150142594, 2759219428,52953913663,1053779339980, 21624992868276,455655808661008,9823903635742978, 216106936268122100,4839230922051864504, 110093028451517403276]

Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

AT&T Labs Research