22329
domain: N
Appears in sequences
- Numbers n such that n | 8^n + 6^n + 4^n + 2^n + 1.at n=21A057840
- Triangle read by rows: T(i,j) = (T(i-1,j) + i)*i.at n=41A121682
- a(n) = the smallest positive integer that, when written in binary, contains both binary n and binary n^2 as substrings.at n=42A165820
- Numbers m such that m*reversal(m) contains every decimal digit exactly once.at n=10A178929
- Numbers that are equal to the sum of the number of divisors of their k first powers, for some k.at n=18A270389
- E.g.f.: exp(Sum_{k>=1} binomial(3*k,k) * x^k).at n=4A370327
- Number of partitions of [n] such that the element sum of each block is one more than a multiple of six.at n=14A375941
- Expansion of e.g.f. exp(-3*x) / (1-x)^5.at n=6A383382