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A090419 Numbers that cannot be written in binary representation as concatenation of primes. 3
1, 4, 6, 8, 9, 12, 16, 18, 20, 24, 25, 26, 27, 28, 32, 33, 34, 35, 36, 38, 39, 40, 44, 48, 49, 50, 51, 52, 56, 57, 60, 64, 65, 66, 68, 69, 72, 74, 75, 76, 77, 80, 82, 84, 88, 92, 96, 98, 99, 100, 102, 104, 105, 106, 108, 110, 112, 114, 116, 120, 121, 124 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A090418(a(n)) = 0; complement of A090421.

LINKS

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

PROG

(Haskell)

a090419 n = a090419_list !! (n-1)

a090419_list = filter ((== 0) . a090418) [1..]

-- Reinhard Zumkeller, Aug 06 2012

CROSSREFS

Cf. A004676, A007088.

Sequence in context: A092630 A079142 A062002 * A209799 A028958 A200878

Adjacent sequences:  A090416 A090417 A090418 * A090420 A090421 A090422

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, Nov 30 2003

EXTENSIONS

Based on corrections in A090418, data recomputed by Reinhard Zumkeller, Aug 06 2012

STATUS

approved

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Last modified April 11 14:58 EDT 2021. Contains 342886 sequences. (Running on oeis4.)