A167977 Triangle A161511(A167979(n,k)).
1, 2, 4, 2, 5, 6, 3, 5, 7, 6, 3, 6, 7, 7, 8, 3, 6, 8, 7, 9, 8, 4, 6, 8, 8, 9, 9, 9, 4, 7, 8, 8, 10, 9, 10, 8, 4, 7, 9, 8, 10, 10, 10, 9, 10
Offset: 1
Examples
The triangle A167979 begins 1 2..6 3..10..12 so mapping each value with A161511 generates this triangle here, which begins 1 2..4 2..5..6
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