A275240 Highly composite numbers of class 2 (see comment in A275239).

5, 9, 10, 20, 40, 80, 84, 192, 210, 288, 432, 480, 1200, 1320, 1800, 2640, 3600, 3780, 6480, 7200, 8400, 10920, 13860, 21840, 31680, 32760, 69300, 73920, 75600, 100800, 120120, 138600, 226800, 240240, 302400, 388080, 393120, 771120, 776160, 942480, 1310400

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Crossrefs

Cf. A002182, A275239, A275241, A275242, A275243, A275244.

Sequence in context: A216765 A117771 A227853 * A175437 A119124 A326769

Adjacent sequences: A275237 A275238 A275239 * A275241 A275242 A275243

Keyword

nonn

Author

Vladimir Shevelev and Peter J. C. Moses, Jul 21 2016

Status

approved