A249595 Positions of nonprimes in A249054.

1, 3, 5, 6, 8, 9, 10, 13, 15, 16, 20, 21, 24, 25, 26, 28, 29, 31, 33, 35, 36, 39, 40, 43, 44, 46, 48, 49, 52, 56, 57, 59, 60, 62, 63, 66, 67, 69, 70, 73, 76, 77, 79, 82, 83, 85, 86, 88, 91, 92, 93, 95, 96, 98, 99, 101, 103, 104, 106, 107, 110, 112, 114, 115

Offset

1,2

Comments

A249054(a(n)) = A018252(n); sequence is strictly increasing, i.e. all nonprimes occur in A249054 in natural order, see also A249594.

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Prog

(Haskell)
import Data.List (elemIndex); import Data.Maybe (fromJust)
a249595 = (+ 1) . fromJust . (`elemIndex` a249054_list) . a018252

Crossrefs

Cf. A018252, A026233, A049084, A239968, A249054, A249594 (complement).

Sequence in context: A026430 A002150 A153264 * A133561 A095117 A184675

Adjacent sequences: A249592 A249593 A249594 * A249596 A249597 A249598

Keyword

nonn

Author

Reinhard Zumkeller, Nov 03 2014

Status

approved