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A253584
Distinct terms in A253443.
3
4, 5, 7, 11, 17, 34, 37, 43, 67, 73, 127, 141, 157, 173, 227, 283, 347, 359, 401, 409, 607, 857, 1091, 1303, 1823, 1907, 2281, 2437, 2441, 2609, 2969, 3851, 4211, 4691, 6907, 7537, 8429, 10301, 11953, 14081, 14557
OFFSET
1,1
COMMENTS
a(n) occurs exactly A253444(n) times in A253443.
MATHEMATICA
nn = 2^14; c[_] := False;
Array[Set[{a[#], c[#]}, {#, True}] &, 2]; u = s = a[1] + a[2];
Rest@ Reap[Monitor[Do[k = SelectFirst[Divisors[s], ! c[#] &];
c[k] = True; s += k;
If[k == u, Sow[u]; While[c[u], u++]], {n, 3, nn}], n]][[-1, 1]] (* Michael De Vlieger, Apr 27 2024 *)
PROG
(Haskell)
import Data.List (group)
a253584 n = a253584_list !! (n-1)
a253584_list = map head $ group a253443_list
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Reinhard Zumkeller, Jan 05 2015
EXTENSIONS
More terms from Michael De Vlieger, Apr 27 2024
STATUS
approved