199692

Appears in sequences

• Triangular matrix T, read by rows, where row n equals row (n-1) of T^(n-1) after appending '1' for the main diagonal.at n=59A101479
• Triangular matrix T, read by rows, where row n of T equals row (n-1) of T^(n+1) with an appended '1'.at n=38A121412
• Column 2 of triangle A121412, in which row n of T=A121412 equals row (n-1) of T^(n+1) with an appended '1'.at n=6A121414
• Rectangular table, read by antidiagonals, where row n is equal to column 2 of matrix power A121412^(n+1) for n>=0.at n=27A121428
• Number of subpartitions of partition P=[0,0,0,1,1,1,1,2,2,2,2,2,3,...], where P(n) = [(sqrt(8*n+25) - 5)/2].at n=33A121432
• Integers whose arithmetic derivative is equal to their Dedekind function.at n=19A301939
• Numbers such that the list of exponents of their factorization is a palindromic list of primes.at n=29A322525
• Numbers k for which A344998(k) = A344999(k).at n=23A345003
• a(n) = number of subsets S of {1,2,...,n} having more than 2 elements such that (sum of least two elements of S) < difference between greatest two elements of S.at n=22A357291