A248387 - OEIS

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A248387

a(n) = index of n-th prime in A247665.

6

1, 2, 4, 5, 8, 9, 10, 11, 12, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 30, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 56, 58, 59, 60, 61, 62, 64, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81

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

OFFSET

1,2

LINKS

Russ Cox and N. J. A. Sloane, Table of n, a(n) for n = 1..99436

PROG

(Haskell)

import Data.List (elemIndex); import Data.Maybe (fromJust)

a248387 = (+ 1) . fromJust . (`elemIndex` a247665_list) . a000040

-- Reinhard Zumkeller, Oct 16 2014

CROSSREFS

Cf. A247665, A248388, A248379.

Subsequence of A248918.

Sequence in context: A123291 A351701 A099402 * A117070 A130048 A189633

Adjacent sequences: A248384 A248385 A248386 * A248388 A248389 A248390

KEYWORD

nonn

AUTHOR

Russ Cox and N. J. A. Sloane, Oct 16 2014

STATUS

approved