30834

Appears in sequences

• Numbers k such that k^2 + 3*k + 1 is a palindrome.at n=25A028348
• Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape Y; triangle T(n,k), n>=0, read by rows.at n=21A247712
• Number of planar graphs of order n with exactly one Hamiltonian cycle and girth at least 5.at n=13A374311
• Consecutive internal states of the linear congruential pseudo-random number generator (3877*s + 29573) mod 139968 when started at 1.at n=25A385459