102010

Appears in sequences

• Squares written in base 4.at n=34A001739
• Expansion of g.f.: (1 + x)/(1 - 3*x - 2*x^2).at n=9A055099
• Expansion of (1+10x)/(1-101x^2).at n=5A096883
• Numbers k such that k^2 plus the reverse of k^2 gives a perfect power.at n=3A113800
• Number of nX9 binary matrices with no 2X2 circuit having pattern 0101 in any orientation.at n=1A181244
• The least positive integer in A055744 divisible by A008578(n).at n=26A256430
• Numbers A055744(n) such that for any k < n, A055744(k) and A055744(n) do not have all their prime factors in common.at n=27A256431
• Numbers n such that sum of decimal digits of n equals number of prime divisors of n counted with multiplicity and sum of distinct decimal digits of n equals number of distinct primes dividing n.at n=16A280911
• Numbers with digits in {0,1,2} such that every other digit is strictly less than its neighbors.at n=35A306105
• Numbers k such that 128 * 3^k + 1 is prime.at n=28A388408