89249

Appears in sequences

• a(n)=n+floor(r*a(n-1)), where r = golden ratio = (1+sqrt(5))/2, a(0)=0, a(1)=1.at n=21A182640
• Numbers that can be written in more than 1 way as p^2 + 3pq + q^2 with primes p < q.at n=33A218795
• a(n) is the total number of squares after n iterations of the "Square Multiscale" substitution.at n=21A329919
• Inverse Euler transform of the tribonacci numbers A000073.at n=23A349904