29369

Appears in sequences

• a(n) = [ a(n-1)/a(1) ] + [ a(n-2)/a(2) ] + ... + [ a(1)/a(n-1) ], for n >= 3.at n=19A022858
• Numbers k such that k*(k+3) is a palindrome.at n=12A028553
• First column and main diagonal of triangle A092683, in which the convolution of each row with {1,1} produces a triangle that, when flattened, equals the flattened form of A092683.at n=17A092684
• Numbers k such that 7*10^k + 2*R_k - 1 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=13A103052
• Row sums of triangle A163842.at n=5A163845
• Numbers that are equal to the sum of the number of divisors of their k first powers, for some k.at n=21A270389
• Numbers k such that (10^k - 79)/3 is prime.at n=18A293853