A194901 Inverse permutation of A194900; every positive integer occurs exactly once.
1, 2, 3, 6, 4, 5, 9, 7, 10, 8, 15, 13, 11, 14, 12, 20, 18, 16, 21, 19, 17, 28, 26, 24, 22, 27, 25, 23, 35, 33, 31, 29, 36, 34, 32, 30, 45, 43, 41, 39, 37, 44, 42, 40, 38, 54, 52, 50, 48, 46, 55, 53, 51, 49, 47, 66, 64, 62, 60, 58, 56, 65, 63, 61, 59, 57, 77, 75, 73
Offset: 1
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Mathematica
(See A194900.)