1,2

77 = 11 * 7 belongs to this sequence but 75 does not as 25 (with a 2) divides 75.

Select[Range[250], And@@OddQ/@Flatten[IntegerDigits/@Divisors[ # ]]&]

Not the same as A014261.

Sequence in context: A074775 A143451 A014261 this_sequence A137507 A061808 A143450

Adjacent sequences: A066637 A066638 A066639 this_sequence A066641 A066642 A066643

nonn,base

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 28 2001

Corrected and extended by Harvey P. Dale (hpd1(AT)nyu.edu), Jan 01 2002