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A308883
a(n) = position of 1 in n-th column of array in A274630.
1
1, 4, 7, 2, 6, 5, 3, 11, 14, 17, 8, 20, 19, 9, 24, 27, 10, 30, 13, 12, 31, 35, 38, 15, 41, 40, 16, 45, 48, 18, 21, 50, 53, 56, 22, 59, 58, 23, 63, 26, 25, 67, 70, 73, 28, 72, 75, 29, 79, 32, 82, 85, 33, 88, 87, 34, 92, 37, 36, 96, 99, 102, 39, 101, 104, 107, 42
OFFSET
1,2
COMMENTS
Also, a(n) = 1 + position of 0 in column n-1 of A308201.
Equals A307281 + 1. This is a self-inverse permutation of the positive integers.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jun 30 2019
STATUS
approved