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A054261 Smallest number that contains the first n primes as substrings. 8
2, 23, 235, 2357, 112357, 113257, 1131725, 113171925, 1131719235, 113171923295, 113171923295, 1131719237295, 11317237294195, 1131723294194375, 113172329419437475, 1131723294194347537, 113172329419434753759 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The version that allows substrings to go from left to right or right to left is A240959. - Dmitry Kamenetsky, Oct 07 2015

LINKS

Anders Kaseorg, Table of n, a(n) for n = 1..510

Carlos Rivera, Puzzle 408. First primes embedded in the smallest number

CROSSREFS

Cf. A054260, A035239, A240959.

Sequence in context: A091762 A309706 A240959 * A019518 A048677 A132933

Adjacent sequences:  A054258 A054259 A054260 * A054262 A054263 A054264

KEYWORD

nonn,base,nice

AUTHOR

Patrick De Geest, Feb 15 2000

EXTENSIONS

More terms from Naohiro Nomoto, Jul 26 2001

STATUS

approved

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Last modified January 22 10:52 EST 2020. Contains 331144 sequences. (Running on oeis4.)