This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A038400 List of pairs of consecutive numbers each with 6 divisors (duplicates removed). 3
 44, 45, 75, 76, 98, 99, 116, 117, 147, 148, 171, 172, 242, 243, 244, 245, 332, 333, 387, 388, 507, 508, 548, 549, 603, 604, 605, 724, 725, 844, 845, 908, 909, 931, 932, 963, 964, 1075, 1076, 1083, 1084, 1251, 1252, 1324, 1325, 1412, 1413, 1467, 1468, 1556, 1557, 1587, 1588 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES D. Wells, The Penguin Dictionary of Curious and Interesting Numbers, Penguin Books, p. 103 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..3000 MATHEMATICA SequencePosition[DivisorSigma[0, Range[1600]], {6, 6}]//Flatten//Union (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Aug 23 2017 *) CROSSREFS Cf. A049103, A049104. Sequence in context: A085519 A112815 A242934 * A254750 A225619 A121610 Adjacent sequences:  A038397 A038398 A038399 * A038401 A038402 A038403 KEYWORD nonn AUTHOR EXTENSIONS More terms from Olivier Gérard STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 20 02:35 EDT 2019. Contains 328244 sequences. (Running on oeis4.)