59533

Appears in sequences

• Concatenating n with n+1 (in base 10) gives a number which is the product of 2 palindromes.at n=30A113942
• Number of -6..6 arrays of n elements with first and second differences also in -6..6.at n=4A201086
• T(n,k)=Number of -k..k arrays of n elements with first and second differences also in -k..k.at n=49A201088
• Number of -n..n arrays of 5 elements with first and second differences also in -n..n.at n=5A201090
• Expansion of series_reversion( x/(1+x^4*sum(k>=0, x^k)) ) / x.at n=22A215341
• Expansion of Product_{k>=1} (1+x^k)^(A000129(k)).at n=12A261331
• Starhex honeycomb numbers: a(n) = 13 + 60*n + 60*n^2.at n=31A332243