Number of compositions of n with parts in standard order.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =9a(7) =16a(8) =29a(9) =53a(10) =98a(11) =182a(12) =340a(13) =638a(14) =1202a(15) =2273a(16) =4312a(17) =8204a(18) =15650a(19) =29925a(20) =57344a(21) =110101a(22) =211771a(23) =407987a(24) =787174a(25) =1520851a(26) =2942030a(27) =5697842a(28) =11046881a(29) =21438881