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A338050
Fixed points in A336957.
4
1, 2, 10, 90, 106, 150, 162, 246, 394, 398, 406, 410, 442, 602, 1106, 1246, 1390, 1482, 1666, 1846, 5524, 6068, 6124, 6976, 35562, 42618, 42726, 45618, 1271596, 2634332, 2766702
OFFSET
1,2
COMMENTS
These are the values of n such that A336957(n) = n. Is this sequence finite or infinite?. We do not know. Also, why are the terms (except the first, which is special) even?
The known values of n such that A336957(n) = n+1 are 43, 103, 191, 203, 207, 211, 243, 247, 251, 287, 291, 303, 327, 399, 8133, 71071, 579451, 10955983. Are there more terms? We do not know. Also, why are all the terms odd?
The known values of n such that A336957(n) = n-1 are 31, 87, 187, 215, 255, 283, 307, 315, 347, 551, 10697, 30525, 46195, 478607, 3856311, 6405255. Same questions!
All these values were computed from Frank Stevenson's file of the first 11333576 terms of A336957.
CROSSREFS
Sequence in context: A326554 A055779 A363425 * A366268 A198434 A326089
KEYWORD
nonn,more
AUTHOR
STATUS
approved