50494

Appears in sequences

• Fibonacci sequence beginning 1, 31.at n=17A022401
• Indices of primes in sequence defined by A(0) = 53, A(n) = 10*A(n-1) + 33 for n > 0.at n=20A101582
• Concatenating n with n+1 (in base 10) gives a number which is the product of 2 palindromes.at n=27A113942
• a(n) = A192525(n)/2.at n=37A192526
• G.f.: Sum_{k>=1} (k^3 * x^(k^2) / Product_{j=1..k} (1 - x^j)).at n=45A333151