69069

Appears in sequences

• Number of asymmetric mobiles (circular rooted trees) with n nodes and 6 leaves.at n=9A055367
• Sixth column (m=5) of (1,4)-Pascal triangle A095666.at n=19A095668
• Consecutive internal states of a linear congruential pseudo-random number generator with a parameter proposed by George Marsaglia as a "candidate for the best of all multipliers".at n=1A096551
• Numbers that look the same when rotated by 180 degrees, using only digits 0, 6 and 9.at n=13A111065
• Numbers that look the same when printed upside down.at n=29A111156
• Strobogrammatic cyclops numbers.at n=12A153806
• Numbers that are the same upside down (using only digits 0, 1, 6 and 9).at n=37A169731
• Number of (n+2) X 6 binary arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.at n=21A190028
• Number of nonnegative integer arrays of length 2n+5 with new values 0 upwards introduced in order, no three adjacent elements all unequal, and containing the value n+1.at n=28A211850
• Cyclops numbers with circular digits {0,6,8,9}.at n=30A274765
• Strobogrammatic nonpalindromic numbers.at n=40A287092
• a(n) is the smallest number such that there are exactly n numbers k (including a(n) itself) such that U(k) is isomorphic to U(a(n)) (or 0 if no such number exists). Here U(k) is the multiplicative group of integers modulo k.at n=43A303712