A135614 Largest highly composite number <= 2*a(n-1).

1, 2, 4, 6, 12, 24, 48, 60, 120, 240, 360, 720, 1260, 2520, 5040, 10080, 20160, 27720, 55440, 110880, 221760, 332640, 665280, 1081080, 2162160, 4324320, 8648640, 17297280, 32432400, 61261200, 122522400, 245044800, 367567200, 735134400, 1396755360, 2793510720, 5587021440

Offset

1,2

Comments

Not the same as A019505; the 29th term of A019505 is 21621600.

Links

Michael De Vlieger, Table of n, a(n) for n = 1..3449

Michael De Vlieger, Table of n, position of a(n) in A002182 for n = 1..57930.

Example

17297280*2 = 34594560; smallest highly composite number <= 34594560 is 32432400.

Crossrefs

Cf. A002182, A073771.

Sequence in context: A136339 A019505 A350049 * A115387 A095849 A094783

Adjacent sequences: A135611 A135612 A135613 * A135615 A135616 A135617

Keyword

nonn

Author

J. Lowell, Feb 28 2008

Extensions

More terms from Jinyuan Wang, Jun 18 2021

Status

approved