A372231 Fixed points of A372341.
1, 2, 5, 8, 12, 18, 24, 32, 40, 49, 60, 71, 83, 97, 111, 127, 143, 160, 179, 198, 219, 240, 262, 286, 310, 335, 362, 389, 418, 447, 477, 509, 541, 574, 609, 644, 681, 718, 756, 796, 836, 878, 920, 963, 1008, 1053, 1099, 1147, 1195, 1245, 1295, 1346, 1399, 1452
Offset: 1
Keywords
Examples
A372341(49) = 49, so 49 belongs to this sequence.
Links
- Rémy Sigrist, C++ program
Formula
A194832(a(n)) = 1. Also the first row A194833(1, n) = a(n). This can be seen in the EXAMPLE section of A372341. Each row is horizontally shifted by a value from A005206. The shift is known to be floor((k+1)*tau)-k-1, where tau is the golden ratio. The position of "1" in a permutation from A194832 is determined by a similar process based on the same constant. - Thomas Scheuerle, Jul 08 2024