Fixed points of permutations A275837 & A275838.

Terms

a(0) =0a(1) =1a(2) =2a(3) =5a(4) =6a(5) =14a(6) =24a(7) =54a(8) =120a(9) =145a(10) =264a(11) =411a(12) =464a(13) =720a(14) =842a(15) =1560a(16) =2042a(17) =2408a(18) =2670a(19) =5040a(20) =5766a(21) =10800a(22) =13686a(23) =16590a(24) =18144a(25) =40320a(26) =45384a(27) =85680a(28) =105864a(29) =106153