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A308530 The number of largely composite numbers (A067128) having the same number of divisors as the n-th highly composite number A002182(n). 3
1, 2, 1, 3, 3, 2, 1, 1, 6, 2, 1, 2, 9, 1, 2, 2, 2, 8, 1, 2, 3, 2, 1, 1, 9, 1, 1, 3, 2, 5, 2, 2, 2, 8, 1, 2, 1, 6, 3, 6, 2, 2, 1, 6, 1, 1, 1, 5, 1, 3, 8, 1, 2, 5, 3, 10, 1, 2, 2, 4, 2, 3, 8, 2, 1, 6, 4, 11, 1, 1, 2, 2, 4, 2, 2, 6, 2, 4, 4, 8, 1, 5, 2, 1, 3, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Michael De Vlieger, Table of n, a(n) for n = 1..783

EXAMPLE

a(4) = 3 since there are 3 largely composite numbers with the same number of divisors as the 4th highly composite number 6: 6, 8, and 10.

MATHEMATICA

s = {}; dm = 1; c = 0; Do[d = DivisorSigma[0, n]; If[d == dm, c++]; If[d > dm, dm = d; AppendTo[s, c]; c = 1], {n, 1, 10^8}]; s

CROSSREFS

Cf. A000005, A002182, A067128.

Sequence in context: A088074 A071463 A335191 * A302555 A336692 A332434

Adjacent sequences:  A308527 A308528 A308529 * A308531 A308532 A308533

KEYWORD

nonn

AUTHOR

Amiram Eldar, Jun 06 2019

STATUS

approved

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Last modified August 3 13:49 EDT 2020. Contains 336198 sequences. (Running on oeis4.)