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A249408
Numbers in A249406 that are not of the form m*(m+1).
2
1, 399, 8099, 33123, 93635, 159200, 256035, 492803, 864899, 1416099, 2196323, 3261635, 4674243, 6502499, 8820899, 12531599, 16257023, 20757135, 26132543, 32489999, 39942399, 48608783, 58614335, 65593800, 73205135, 86713343, 102009999, 119246399, 138579983
OFFSET
1,2
LINKS
FORMULA
A005369(a(n)) = 0.
PROG
(Haskell)
import Data.List ((\\))
a249408 n = a249408_list !! (n-1)
a249408_list = filter ((== 0) . a005369) a249406_list
CROSSREFS
Cf. A249406, A005369, A002378, subsequence of A078358.
Sequence in context: A065767 A166915 A110885 * A216928 A283384 A140892
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Oct 31 2014
STATUS
approved