103765

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 71.at n=2A031659
• a(n) = Lucas(n+1) + prime(n).at n=22A160243
• a(0) = 6; thereafter a(n) = 4*a(n-1) + 1.at n=7A323824
• Array A read by upward antidiagonals in which the entry A(n,k) in row n and column k is defined by A(n, k) = 4^n*(6*k - 3 - 2*(-1)^n) + (4^n - 1)/3, n,k >= 1.at n=49A371100