cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A131396 Positions of n-th positive integer in A131394, minus 1.

Original entry on oeis.org

1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 19, 21, 24, 25, 27, 30, 31, 34, 35, 37, 39, 41, 43, 46, 48, 49, 51, 53, 56, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 78, 80, 82, 84, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 108, 111, 112, 114, 117, 119, 121, 123, 125, 127, 129
Offset: 1

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Author

Clark Kimberling, Jul 06 2007, Jul 21 2007

Keywords

Comments

If A131394 is a permutation of the integers, as conjectured, then A131396 is the complement of A131397.

Examples

			The 5th positive integer to occur in A131393 is 6, which occurs at position 9, so that a(5) = 9 - 1 = 8.
		

Formula

a(n) = position of n-th positive integers in A131393, minus 1.