A130376 Signature permutation of a Catalan automorphism: apply *A074686 after the first nil on the top-level of list, if any present, otherwise leave the structure intact.
0, 1, 2, 3, 5, 4, 6, 7, 8, 13, 12, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 36, 35, 31, 32, 34, 24, 23, 25, 26, 27, 28, 29, 30, 33, 38, 37, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 106, 105, 100, 101, 104
Offset: 0
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