A031881 as tables, graphs or sounds

A031881 formatted as a simple table:

`n`		`a(n)`
`1`		`3`
`2`		`7`
`3`		`151`
`4`		`727`
`5`		`787`
`6`		`10501`
`7`		`13831`
`8`		`18181`
`9`		`30103`
`10`		`70207`
`11`		`72727`
`12`		`77377`
`13`		`78487`
`14`		`93139`
`15`		`94849`
`16`		`96469`
`17`		`96769`
`18`		`98689`
`19`		`1008001`
`20`		`1062601`
`21`		`1160611`
`22`		`1190911`
`23`		`1253521`
`24`		`1327231`
`25`		`1409041`
`26`		`1447441`
`27`		`1463641`
`28`		`1490941`
`29`		`1640461`
`30`		`1670761`
`31`		`1684861`

[3,7,151,727,787,10501,13831,18181,30103,70207, 72727,77377,78487,93139,94849,96469,96769,98689, 1008001,1062601,1160611,1190911,1253521,1327231, 1409041,1447441,1463641,1490941,1640461,1670761, 1684861]

Last modified December 21 10:15 EST 2009. Contains 171081 sequences.

AT&T Labs Research