A207432 Positions of primes in A066680, the badly sieved numbers.

1, 2, 3, 4, 6, 8, 9, 11, 12, 14, 16, 17, 18, 19, 21, 23, 24, 25, 27, 29, 30, 32, 34, 35, 36, 38, 39, 41, 42, 44, 46, 48, 49, 50, 52, 53, 55, 56, 58, 60, 63, 64, 66, 68, 70, 71, 73, 75, 76, 77, 79, 80, 81, 84, 85, 87, 89, 90, 93, 94, 95, 97, 98, 99, 101, 102

Offset

1,2

Comments

A066680(a(n)) = A000040(n).

Links

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

Index entries for sequences generated by sieves

Prog

(Haskell)
import Data.List (elemIndex)
import Data.Maybe (fromJust)
a207432 n = (fromJust $ elemIndex (a000040 n) a066680_list) + 1

Crossrefs

Cf. A000040.

Sequence in context: A233133 A364216 A186541 * A020900 A333309 A282697

Adjacent sequences: A207429 A207430 A207431 * A207433 A207434 A207435

Keyword

nonn

Author

Reinhard Zumkeller, Feb 17 2012

Status

approved