22710

Appears in sequences

• Number of connected numbers (A029827) with binary order (A029837) <= n.at n=16A036387
• Numbers whose square root in base 10 starts with 10 distinct digits.at n=11A113507
• a(1) = 1, and then a(n) is sum of k*a(k) where k<n and k divides n.at n=47A165552
• Number of (n+2) X 4 binary arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.at n=20A190026
• Triangle read by rows: number of idempotent basis elements of rank k in partition monoid P_n.at n=24A256042
• Number of length-(n+1) 0..n arrays with new repeated values introduced in sequential order starting with zero.at n=4A268254
• Number of length-(n+1) 0..5 arrays with new repeated values introduced in sequential order starting with zero.at n=4A268258
• T(n,k)=Number of length-(n+1) 0..k arrays with new repeated values introduced in sequential order starting with zero.at n=40A268261
• Number of length-(5+1) 0..n arrays with new repeated values introduced in sequential order starting with zero.at n=4A268264
• Numbers k such that Bernoulli number B_{k} has denominator 14322.at n=31A295588
• G.f.: Product_{n>=1} (1 - 2*x^n)^3.at n=34A322216
• Numbers that cannot be expressed as the sum of one or more numbers without any repeated digits.at n=26A342080
• a(n) = A342001(A342456(n)); "wild part" of the arithmetic derivative of A342456(n).at n=57A342463