104412

Appears in sequences

• Pentagonal numbers (A000326) whose digit reversal is the product of 2 palindromes greater than 1.at n=25A115703
• Pentagonal numbers for which the sum of the digits is also a pentagonal number.at n=28A117709
• Pentagonal numbers for which both the sum of the digits and the product of the digits are pentagonal numbers.at n=17A117711
• G.f.: (1+x)^(2*g)*(1+x^3)^(3*g)/((1-x^2)*(1-x^4))-x^(2*g)*(1+x)^4/((1-x^2)*(1-x^4)) for g=3.at n=39A199629
• Numbers n such that there exists an x!=n that makes {x,x,n} an amicable multiset.at n=11A259303