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A073488 Squarefree numbers having exactly two prime gaps. 5
110, 130, 170, 182, 190, 230, 238, 266, 273, 290, 310, 322, 357, 370, 374, 399, 406, 410, 418, 430, 434, 470, 483, 494, 506, 518, 530, 546, 561, 574, 590, 598, 602, 609, 610, 627, 638, 651, 658, 670, 682, 710, 714, 730, 741, 742, 754, 759, 777, 782, 790 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

A073484(a(n)) = 2.

EXAMPLE

1430 is a term, as 1430 = 2*5*11*13 with two gaps: between 2 and 5 and between 5 and 11.

CROSSREFS

Cf. A005117, A073486, A073487, A073489, A073494.

Sequence in context: A059469 A114068 A073494 * A176879 A039447 A095611

Adjacent sequences:  A073485 A073486 A073487 * A073489 A073490 A073491

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 03 2002

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Last modified February 17 23:45 EST 2012. Contains 206085 sequences.