33615

Appears in sequences

• Apply partial sum operator twice to Catalan numbers.at n=10A014140
• Conjectured number of irreducible multiple zeta values of depth 7 and weight 2n+19.at n=24A022495
• Numbers k such that k^6 == 1 (mod 7^5).at n=12A056103
• Cubeful numbers whose neighbors are also cubeful.at n=16A122692
• Numbers k > 1 for which floor(b(k)) = floor(b(k-1)), where b(m) = Sum_{j=1..m} (j/(j+2)).at n=18A133470
• 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, 0, 0), (-1, 0, 1), (1, 0, 0), (1, 0, 1), (1, 1, 0)}.at n=7A151241
• a(n) = 2*7^n+1.at n=5A199416
• The number of subsets X of Zn such that for all u, v in X, u+v is not in X.at n=28A206702
• T(n,k)=Number of nXk 0..1 arrays with rows and antidiagonals unimodal.at n=47A223680
• Number of 3 X n 0..1 arrays with rows and antidiagonals unimodal.at n=7A223681
• Numbers n such that n and n+1 both have 20 divisors.at n=4A274361
• Numbers k such that both k and k+1 are not exponentially squarefree numbers.at n=24A342188
• Numbers whose sum of prime divisors equals the sum of square divisors.at n=22A390397
• a(n) is the maximum permanent of an n X n circulant matrix whose rows are permutations of [1, 2, ..., n].at n=5A392188