Records in first differences of A340494.

Terms

a(0) =2a(1) =3a(2) =8a(3) =33a(4) =138a(5) =563a(6) =2268a(7) =9093a(8) =36398a(9) =145623a(10) =582528a(11) =2330153a(12) =9320658a(13) =37282683a(14) =149130788a(15) =596523213a(16) =2386092918a(17) =9544371743a(18) =38177487048a(19) =152709948273a(20) =610839793178