41414

Appears in sequences

• Numbers that are the sum of 6 positive 9th powers.at n=17A003395
• Palindromes of form k^2 + k + 2.at n=11A027713
• Palindromes that start with 4.at n=36A043039
• Triangle read by rows giving numbers of paths in a lattice satisfying certain conditions.at n=65A071944
• Triangle T(n,k) read by rows giving number of underdiagonal lattice paths from (0,0) to (n,k) using only steps R = (1,0), V = (0,1) and D = (3,1).at n=64A071946
• Triangle T(n,k) read by rows giving number of underdiagonal lattice paths from (0,0) to (n,k) using only steps R = (1,0), V = (0,1) and D = (3,1).at n=65A071946
• a(n) = Sum_{k=0..floor(n/3)} (binomial(n+1, k)*binomial(2*n-3*k, n-3*k)/(n+1)).at n=10A071969
• Palindromic even squarefree numbers with an even number of distinct prime factors.at n=34A075811
• Palindromic even numbers with exactly 2 prime factors (counted with multiplicity). Equivalently, palindromic numbers of the form 2*p with p prime.at n=23A075813
• Numbers n such that n and pi(n) (A000720) are palindromic.at n=29A103357
• Triangle in A071944 with rows reversed.at n=55A108074
• Triangle in A071946 with rows reversed.at n=55A108076
• Triangle in A071946 with rows reversed.at n=56A108076
• The number of n-almost primes less than or equal to 4^n, starting with a(0)=1.at n=13A116426
• Duplicate of A071969.at n=10A119255
• Palindromic numbers that contain the sum of their digits as a substring.at n=33A121939
• Number of partitions of n such that (number parts having multiplicity 1) is not a part and (number of parts > 1) is not a part.at n=48A241514
• a(1)=4; for n>=1, a(n+1) is the smallest palindromic semiprime with a(n) as a central substring.at n=2A247483
• Numbers k with the property that the square root of the product of the digits of k is equal to the sum of the square roots of its digits.at n=31A281745
• Number of partitions p of n such that (1/5)*max(p) is a part of p.at n=53A363068