20232

Appears in sequences

• a(n) = floor(Fibonacci(n)/6).at n=26A004699
• a(n) = round(n*phi^14), where phi is the golden ratio, A001622.at n=24A004949
• a(n) = ceiling(n*phi^14), where phi is the golden ratio, A001622.at n=24A004969
• Theta series of laminated lattice LAMBDA_12^{max}.at n=4A006914
• a() = 1,3,... [ A037257 ], differences = 2,... [ A037258 ] and 2nd differences [ A037259 ] are disjoint and monotonic; adjoin next free number to 2nd differences unless it would produce a duplicate in which case ignore.at n=43A037257
• a(n) = digit reversal of A103741(n).at n=16A103763
• a(n) = digit reversal of A103764.at n=4A103837
• Expansion of 1/(2*sqrt(1-6*x+x^2) - 1).at n=5A115969
• a(1)=1, a(n) = a(n-1) + n^5 if n odd, a(n) = a(n-1) + n^2 if n is even.at n=6A135095
• Averages of twin primes of the form : i^2+j^2, as sum of two squares.at n=36A143793
• Averages of twin prime pairs which are a sum of averages of two consecutive twin prime pairs.at n=33A160916
• Average of twin prime pairs with multiple and strictly distinct powers.at n=25A177426
• Number of lattice paths from (0,0) to (n,n) using steps (1,0), (3,0), (0,1), (0,3).at n=7A192446
• [s(k)-s(j)]/6, where the pairs (k,j) are given by A205857 and A205858, and s(k) denotes the (k+1)-st Fibonacci number.at n=43A205860
• a(n) = sigma(n)*Lucas(n) where Lucas(n) = A000204(n) and sigma(n) = A000203(n) is the sum of divisors of n.at n=13A225528
• Number of ternary palindromes of length 2n+1 having no (7/4)+ powers.at n=44A279625
• a(n) = 4*(n - 1)*(16*n - 23) for n >= 1.at n=18A304378
• Average of twin prime pairs that is a product of two averages of twin prime pairs.at n=36A307758
• Number of normal patterns matched by integer partitions of n.at n=21A335837
• Expansion of Product_{k>=1} (1 + x^k + x^(k+2)).at n=41A345729