348840

Appears in sequences

• Partial sums of A051947.at n=14A050483
• Number of labeled pure 2-complexes on n nodes (0-simplexes) with 5 2-simplexes and 8 1-simplexes.at n=14A054559
• Triangle read by rows: T(n,k) is the number of ternary trees with n edges and having k middle edges (n >= 0, k >= 0).at n=47A120986
• Lower triangular array called S1hat(3) related to partition number array A144880.at n=47A144881
• Third column (m=3) of triangle A144881 (S1hat(3)).at n=7A144884
• a(n) is the number of distinct reduced words of length n in the Coxeter group of "Apollonian reflections" in three dimensions.at n=10A154638
• Numbers with prime factorization pqrs^3t^3.at n=24A190385
• a(n) = 3*binomial(n+1,7).at n=14A253944
• Numbers n such that 2*n and n^3 have the same digit sum.at n=28A266315
• T(n, k) = binomial(n - k - 1, k)*binomial(2*n - 2*k, n)/(n + 1), for n >= 1 and 0 <= k <= floor((n - 1)/2), triangle read by rows.at n=38A319120
• Lesser of semi-unitary amicable numbers pair: numbers (m, n) such that susigma(m) = susigma(n) = m + n, where susigma(n) is the sum of the semi-unitary divisors of n (A322485).at n=29A322541
• Lesser of modified exponential amicable pairs.at n=24A323758
• Lesser of exponentially-odd amicable numbers pair: numbers m < k such that m = s(k) and k = s(m), where s(k) is the sum of proper exponential-odd divisors of k.at n=13A325847
• Column 2 of triangle in A331431.at n=14A331434
• Lesser of recursive amicable numbers pair: numbers m < k such that m = s(k) and k = s(m), where s(k) = A333926(k) - k is the sum of proper recursive divisors of k.at n=28A333929