85562

Appears in sequences

• a(n) is the first pentagonal number that is nontrivially the sum of two pentagonal numbers of the type P(p) + P(p+n) (we always have P(k) = P(0) + P(k)).at n=8A133312
• Pentagonal numbers > 0 which are not the difference of two larger pentagonal numbers.at n=25A136113
• Number of (1+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal.at n=17A232590