23772

Appears in sequences

• Expansion of 1/((1-3*x)*(1-4*x)*(1-5*x)).at n=5A016753
• Multiply by 1, add 1, multiply by 2, add 2, etc., start with 2.at n=13A019465
• Numbers n with property that every digit is a prime factor of n.at n=30A062239
• Erroneous version of A062239, numbers n with property that every digit is a prime factor of n.at n=9A066483
• Multiples of 6 with only prime digits (2, 3, 5 and 7).at n=37A077535
• Refines A075197(n): number of partitions of n balls of n colors. The refinement has shape A000041(n).at n=42A130273
• Triangle read by rows: 3-Stirling numbers of the second kind.at n=30A143495
• Numbers n such that n^6 + 545 is prime.at n=13A163592
• Number of permutations of {1..n} with the sum of squared adjacent differences < n*(n+1)/2.at n=10A180071
• Number of distinct (unordered) pairs of partitions of an 8-element set that have Rand distance n.at n=1A192098
• Number of binary arrays of length n+7 with fewer than 4 ones in any length 8 subsequence (=less than 50% duty cycle).at n=11A213114
• Number of non-isomorphic n-element sets of singletons or pairs of elements of {1..n} with union {1..n}, or unlabeled loop-graphs with n edges covering n vertices.at n=11A368599
• Square array A(n, k) = ((k+2)^(n+2) - 2 * (k+1)^(n+2) + k^(n+2))/2 for k, n >= 0 read by ascending antidiagonals.at n=39A372118
• Integers k such that there are i groups of order k+i up to isomorphism, for i=1,2,3.at n=15A373649