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A005242 A self-generating sequence.
(Formerly M0971)
3
1, 2, 4, 5, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 25, 27, 28, 32, 33, 34, 37, 38, 40, 42, 43, 44, 46, 47, 48, 51, 53, 54, 56, 57, 58, 59, 61, 62, 63, 64, 66, 68, 69, 72, 73, 74, 77, 79, 81, 83, 84, 86, 88, 89, 91, 92, 94, 96, 97, 98, 100 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, E30.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

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

Eric Weisstein's World of Mathematics, Prime Number of Measurement.

PROG

(Haskell)

import Data.List ((\\))

a005242 n = a005242_list !! (n-1)

a005242_list = f [1..] 0 0 where

   f (x:xs) y z = x : f (xs \\ [x + y, x + y + z]) x y

-- Reinhard Zumkeller, May 23 2013

CROSSREFS

Cf. A002048, A033627.

Sequence in context: A188972 A047612 A123886 * A188975 A115392 A179509

Adjacent sequences:  A005239 A005240 A005241 * A005243 A005244 A005245

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Jud McCranie Feb 15 1997

STATUS

approved

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Last modified October 19 22:28 EDT 2018. Contains 316378 sequences. (Running on oeis4.)