Number of compositions of n if all summand runs are kept together.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =12a(6) =22a(7) =36a(8) =60a(9) =97a(10) =162a(11) =254a(12) =406a(13) =628a(14) =974a(15) =1514a(16) =2305a(17) =3492a(18) =5254a(19) =7842a(20) =11598a(21) =17292a(22) =25294a(23) =37090a(24) =53866a(25) =78113a(26) =112224a(27) =161092a(28) =230788a(29) =328352