102340
domain: N
Appears in sequences
- Binomial coefficients C(n,83).at n=3A017747
- Binomial coefficients C(86,n).at n=3A017802
- Positive numbers k such that k and 4*k are anagrams in base 7 (written in base 7).at n=25A023070
- a(n) = (prime(n) - 1)*(prime(n) - 3)*(prime(n) - 5)/48.at n=38A030004
- Number of orbits of the wreath product of S_n with S_n on n X n matrices over {0,1,2,3,4,5,6}.at n=3A099125
- a(n) = A000292(A000292(n)).at n=7A140236
- Tetrahedral numbers n*(n+1)*(n+2)/6 with n, n+1 and n+2 nonprime.at n=25A152622
- Least nonnegative integer k such that the decimal representations of k and k+1 have n distinct digits in common.at n=5A164832
- G.f. satisfies: A(x) = ( Sum_{n>=0} q^(n*(n+1)/2) )^4 where q=x*A(x)^2.at n=5A194044
- a(n) = binomial(3*n+2,3).at n=27A228888
- The diagonal of 1/(1 - (y + z + x z + x w + x y w)).at n=4A268543
- a(n) = (p+1)*(p+2)*(p+3)/6 where p is the n-th prime.at n=22A271512
- a(n) = n * (binomial(n + 1, 3) + 1).at n=28A329523
- Array read by antidiagonals: A(n,k) is the number of n element multisets of n element multisets of a k-set.at n=58A331436