67095

Appears in sequences

• Smaller of an amicable pair: (a,b) such that sigma(a) = sigma(b) = a+b, a < b.at n=10A002025
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 37.at n=6A031715
• Amicable numbers.at n=19A063990
• Smaller member of an infinitary amicable pair.at n=14A126169
• Infinitary amicable numbers.at n=27A127664
• List of numbers which are both amicable and friendly.at n=1A140688
• Conjectured list of smallest terms of k-sociable cycles of order r.at n=20A183016
• Conjectured list of multisociable numbers.at n=32A183019
• Numbers k such that sigma(k) = sigma(sigma(k)-k).at n=23A206708
• Smaller members of regular amicable pairs.at n=7A215491
• Abundant numbers whose aliquot sequence is abundant, deficient, abundant, ..., etc.at n=12A234969
• Amicable pairs.at n=20A259180
• Amicable pairs (x < y) ordered by nondecreasing sum (x + y) and then by increasing x.at n=18A259933
• Smaller of amicable pair (x, y) as they are listed in A259933.at n=9A260086
• Amicable pairs of odd numbers.at n=2A262623
• Odd amicable numbers.at n=2A262625
• Number of n X 2 binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two exactly once.at n=11A268783
• List of pairs of amicable numbers (m,n) where the sum of the pair is divisible by 10.at n=8A291422
• Smaller of bi-unitary amicable pair.at n=17A292980
• Lesser 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=11A324708