44955
domain: N
Appears in sequences
- Number of inequivalent ways to color vertices of a regular tetrahedron using <= n colors.at n=27A006008
- Moessner triangle based on A000217.at n=33A125777
- Numbers k such that k and k^2 use only the digits 0, 2, 4, 5 and 9.at n=45A136901
- Number of nX3 0..1 arrays with every element equal to 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=17A300367
- Indices of primes in A266891.at n=28A304210
- Numbers n=2*k-1 where Sum_{j=1..k} (-1)^(j+1) * d(2*j-1) achieves a new negative record, with d(n) = number of divisors of n (A000005).at n=23A318738
- Number of ways to write n as an ordered sum of 9 nonprime numbers.at n=26A341486
- Numbers k such that sigma(k)^2 is divisible by k-1.at n=35A344347
- Number of partitions p of n such that (1/3)*max(p) is a part of p.at n=52A363066
- Number of polycubes of size n and symmetry class CE.at n=18A376979