CIK transform of partition numbers A000041.

Terms

a(0) =1a(1) =1a(2) =3a(3) =6a(4) =14a(5) =28a(6) =68a(7) =148a(8) =358a(9) =845a(10) =2061a(11) =5018a(12) =12458a(13) =30922a(14) =77557a(15) =195154a(16) =493809a(17) =1253614a(18) =3195210a(19) =8166758a(20) =20935826a(21) =53799072a(22) =138571332a(23) =357647566a(24) =924846881a(25) =2395702829a(26) =6215779536a(27) =16150985916a(28) =42024260088a(29) =109485000778