22100
domain: N
Appears in sequences
- a(n) = n^2 written in base 3.at n=15A001738
- Sum of the first n even squares: a(n) = 2*n*(n+1)*(2*n+1)/3.at n=25A002492
- Binomial coefficient C(4n,n-10).at n=3A004340
- Number of paraffins (see Losanitsch reference for precise definition).at n=19A006010
- Even tetrahedral numbers.at n=37A015220
- Binomial coefficients C(n,49).at n=3A017713
- Binomial coefficients C(52,n).at n=3A017768
- Numbers that are the sum of 2 nonzero squares in exactly 6 ways.at n=14A025289
- Numbers that are the sum of 2 nonzero squares in 5 or more ways.at n=21A025296
- Numbers that are the sum of 2 nonzero squares in 6 or more ways.at n=14A025297
- Numbers that are the sum of 2 distinct nonzero squares in exactly 6 ways.at n=14A025307
- Numbers that are the sum of 2 distinct nonzero squares in 5 or more ways.at n=19A025315
- Numbers that are the sum of 2 distinct nonzero squares in 6 or more ways.at n=14A025316
- (prime(n)-5)(prime(n)-7)(prime(n)-9)/48.at n=26A030002
- a(n) = (prime(n)-3)*(prime(n)-5)*(prime(n)-7)/48.at n=26A030003
- Sum of n-th powers of divisors of 120.at n=2A034673
- In the list of divisors of n (in base 3), each digit 0-2 appears equally often.at n=17A045811
- Square roots of sums of squares of divisors in A046655.at n=14A046656
- Square roots of sums of squares of divisors in A046655.at n=12A046656
- (Terms in A029661)/2.at n=40A051430