230300

Appears in sequences

• Binomial coefficient C(5n, n-6).at n=4A004348
• a(n) = binomial coefficient C(n,46).at n=4A010999
• Binomial coefficients C(50,n).at n=4A017766
• Binomial coefficients C(2*n+4,4).at n=23A053134
• Triangle of numbers related to triangle A092083; generalization of Stirling numbers of second kind A008277, Lah-numbers A008297, ...at n=24A092082
• Pentagonal numbers (A000326) that are the product of 2 palindromes greater than 1.at n=26A115745
• Third extended Jacobsthal recurrence: a(n)=4a(n-1)-6(n-2)+4a(n-3)-a(n-4)+2a(n-5).at n=21A134987
• List of numbers that are both pentagonal (A000326) and binomial coefficients C(n,4) (A000332).at n=32A145920
• Pentagonal numbers that are the product of two pentagonal numbers greater than 1.at n=3A188663
• Exponential weird numbers: numbers that are exponential abundant (A129575) but not exponential pseudoperfect (A318100).at n=14A321146
• Coreful weird numbers: numbers k that are coreful abundant (A308053) but no subset of their aliquot coreful divisors sums to k.at n=14A339939
• a(n) = n + 2*binomial(n,2) + 3*binomial(n,3) + 4*binomial(n,4).at n=35A361099
• Square array read by antidiagonals: the n-th row lists n-gonal numbers that are products of smaller n-gonal numbers.at n=48A374370
• Pentagonal numbers that are products of smaller pentagonal numbers.at n=6A374372