22542
domain: N
Appears in sequences
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite DDR = Deca-dodecasil 3R[Si120O240]qR starting with a T7 atom.at n=13A019109
- Expansion of Product_{m>=1} (1+q^m)^(-3).at n=40A022598
- a(n) is the number of numbers k with 2^(n-1) < k <= 2^n having a number of divisors that is a power of 2.at n=15A036539
- Integers n > 10563 such that the 'Reverse and Add!' trajectory of n joins the trajectory of 10563.at n=16A063064
- Number of partitions of n such that the number of different parts is odd.at n=40A090794
- McKay-Thompson series of class 32a for the Monster group.at n=40A107635
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (0, 1, -1), (0, 1, 0), (1, 0, -1), (1, 0, 1)}.at n=8A150217
- Least number k having n representations as the sum of the minimal number of cubes A002376(k).at n=24A163490
- Numbers k such that (7*10^k - 151)/9 is prime.at n=19A293033
- O.g.f. A(x) satisfies: [x^n] exp( n^4*x - n*A(x) ) = 0 for n >= 1.at n=2A319941
- Square array read by upward antidiagonals in which T(w,p) is the smallest number k whose symmetric representation of sigma(k) consists of p parts with maximum width w occurring in at least one of its p parts.at n=24A348171
- a(n) is the first average of a twin prime pair that is the sum of two distinct averages of twin prime pairs in exactly n ways.at n=35A358463