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A002220 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`4`
`3`		`10`
`4`		`30`
`5`		`65`
`6`		`173`
`7`		`343`
`8`		`778`
`9`		`1518`
`10`		`3088`
`11`		`5609`
`12`		`10959`
`13`		`18990`
`14`		`34441`
`15`		`58903`
`16`		`102044`
`17`		`167499`
`18`		`282519`
`19`		`451529`
`20`		`737208`
`21`		`1160102`
`22`		`1836910`
`23`		`2828466`
`24`		`4410990`
`25`		`6670202`
`26`		`10161240`
`27`		`15186315`
`28`		`22758131`
`29`		`33480869`

[1,4,10,30,65,173,343,778,1518,3088,5609,10959, 18990,34441,58903,102044,167499,282519,451529, 737208,1160102,1836910,2828466,4410990,6670202, 10161240,15186315,22758131,33480869]

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Last modified August 6 07:30 EDT 2024. Contains 374960 sequences. (Running on oeis4.)