403782

Appears in sequences

• Fibonacci sequence beginning 5, 11.at n=23A022136
• Start with a(1)=1; for n >= 1, a(n+1)=a(n)+a(k) with k=[n - n-th digit of sqrt(2)]. If k<0 or k=0, then a(k)=0.at n=47A133393
• Pentagonal numbers > 0 which are not the difference of two other pentagonal numbers > 0.at n=25A135769
• Pentagonal numbers > 0 which are not the difference of two larger pentagonal numbers.at n=37A136113