196650

Appears in sequences

• a(n) = floor(n*phi^20), where phi is the golden ratio, A001622.at n=13A004935
• Larger member of an infinitary amicable pair.at n=26A126170
• Larger of bi-unitary amicable pair.at n=26A292981
• a(n) = (14*n)!*(3*n)!/((9*n)!*(7*n)!*n!).at n=2A295447
• Larger of tri-unitary amicable numbers pair: numbers (m, n) such that tsigma(m) = tsigma(n) = m + n, where tsigma(n) is the sum of the tri-unitary divisors of n (A324706).at n=19A324709