33673

Appears in sequences

• a(n+1) = a(n)^2 + a(n) + 1.at n=5A002065
• a(n) = 10000*log(n) rounded to nearest integer.at n=28A004244
• Numbers n such that 237*2^n-1 is prime.at n=34A050877
• Square array read by antidiagonals with T(n,k)=T(n,k-1)^2+n*T(n,k-1)+1 and T(n,0)=0.at n=22A060136
• Numbers n such that n and prime(n) end with the same three digits.at n=31A067841
• Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1000-1111-0101 pattern in any orientation.at n=11A147181
• Monotonic ordering of set S generated by these rules: if x and y are in S then x^2+y^2+xy is in S, and 1 is in S.at n=11A192535
• Least integer k such that the n-th prime of form m^2+1 divides the composite number k^2+1.at n=33A255675
• Intersection of A002061 and A016105.at n=39A370519
• Sequence of primitive Pythagorean triples beginning with the triple (3,4,5), with each subsequent triple having as its inradius the semiperimeter of the previous triple, and with the long leg and the hypotenuse of each triple being consecutive natural numbers.at n=9A379506