A163759 - OEIS

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A163759

Exactly three distinct primes occur as substrings of the digits of n.

1

23, 37, 53, 73, 117, 123, 127, 132, 135, 139, 153, 157, 167, 171, 172, 175, 193, 211, 213, 217, 227, 229, 230, 232, 234, 236, 238, 241, 243, 247, 251, 259, 263, 267, 275, 277, 279, 295, 307, 312, 315, 319, 323, 325, 327, 329, 331, 352, 357, 370, 374, 376

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

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..52.

EXAMPLE

a(1) = 23 because "2" and "3" and "23" are prime substrings of "23".

CROSSREFS

Sequence in context: A105184 A238056 A066064 * A190731 A348699 A092622

Adjacent sequences: A163756 A163757 A163758 * A163760 A163761 A163762

KEYWORD

base,easy,nonn

AUTHOR

Gil Broussard, Aug 03 2009

STATUS

approved