A027658 as tables, graphs or sounds

A027658 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`12`
`3`		`31`
`4`		`71`
`5`		`147`
`6`		`280`
`7`		`498`
`8`		`837`
`9`		`1342`
`10`		`2068`
`11`		`3081`
`12`		`4459`
`13`		`6293`
`14`		`8688`
`15`		`11764`
`16`		`15657`
`17`		`20520`
`18`		`26524`
`19`		`33859`
`20`		`42735`
`21`		`53383`
`22`		`66056`
`23`		`81030`
`24`		`98605`
`25`		`119106`
`26`		`142884`
`27`		`170317`
`28`		`201811`
`29`		`237801`
`30`		`278752`

[1,4,12,31,71,147,280,498,837,1342,2068,3081,4459, 6293,8688,11764,15657,20520,26524,33859,42735, 53383,66056,81030,98605,119106,142884,170317, 201811,237801,278752]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research