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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..150

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

Adjacent sequences:  A249405 A249406 A249407 * A249409 A249410 A249411

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Oct 31 2014

STATUS

approved

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Last modified October 20 20:57 EDT 2021. Contains 348119 sequences. (Running on oeis4.)