A376669 Positive integers whose maximum frequency in a fixed row of A036038 (or A078760) is equal to 2, i.e., numbers m such that A376663(m) = 2.

56, 210, 504, 1260, 1365, 1680, 1716, 2520, 5040, 7560, 9240, 13860, 15120, 17550, 21840, 24024, 25200, 25740, 27720, 30030, 42504, 43680, 55440, 60060, 69300, 72072, 75600, 77520, 83160, 110880, 120120, 151200, 154440, 168168, 180180, 185640, 203490, 240240

Offset

1,1

Links

Pontus von Brömssen, Table of n, a(n) for n = 1..10000

Example

56 is a term, because it can be represented as a multinomial coefficient for 2 different partitions of 8 (and never for more than 2 different partitions of the same integer): 56 = 8!/(1!*1!*6!) = 8!/(3!*5!).

Crossrefs

Second row of A376667.

Subsequence of A325306.

Cf. A036038, A078760, A376372, A376663.

Sequence in context: A179403 A158481 A325306 * A193428 A179757 A233989

Adjacent sequences: A376666 A376667 A376668 * A376670 A376671 A376672

Keyword

nonn

Author

Pontus von Brömssen, Oct 02 2024

Status

approved