a(n) = Sum_{k=1..n-1} k*A110971(n,k).

Terms

a(0) =1a(1) =3a(2) =8a(3) =21a(4) =52a(5) =126a(6) =296a(7) =685a(8) =1556a(9) =3498a(10) =7768a(11) =17122a(12) =37416a(13) =81308a(14) =175568a(15) =377469a(16) =807604a(17) =1721970a(18) =3657464a(19) =7746838a(20) =16357496a(21) =34459428a(22) =72407728a(23) =151851986a(24) =317777032a(25) =663908196a(26) =1384524656a(27) =2883208740a(28) =5994736336a(29) =12448784824