Number of integer partitions of n > 0 that are not the first sums of any composition with all parts > 1.

A391620

Number of integer partitions of n > 0 that are not the first sums of any composition with all parts > 1.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =10a(6) =14a(7) =20a(8) =28a(9) =39a(10) =53a(11) =72a(12) =96a(13) =128a(14) =168a(15) =220a(16) =285a(17) =369a(18) =472a(19) =603a(20) =765a(21) =968a(22) =1216a(23) =1525a(24) =1901a(25) =2366a(26) =2929a(27) =3618a(28) =4450a(29) =5464

External references