68237

Appears in sequences

• Numbers k such that phi(k) is equal to A008473(k+1).at n=13A039781
• Square array of numbers associated to the recurrences b(k) = b(k-1) + n*b(k-2); array T(n,k), read by descending antidiagonals, for n, k >= 0.at n=40A110112
• Triangle t(n,k) read by rows: fibonomial ratios c(n)/(c(k)*c(n-k)) where c are partial products of a generalized Fibonacci sequence with multiplier m=4.at n=31A172349
• Triangle t(n,k) read by rows: fibonomial ratios c(n)/(c(k)*c(n-k)) where c are partial products of a generalized Fibonacci sequence with multiplier m=4.at n=32A172349
• Numbers m such that m | A000385(m-1) = Sum_{k=1..m-1} sigma(k) * sigma(m-k).at n=28A326608
• a(n) = Sum_{k=0..n} binomial(n+3*k+3,n-k) * Catalan(k).at n=7A358518