23032

Appears in sequences

• Expansion of Product_{m>=1} (1 - m*q^m)^3.at n=21A022663
• Even palindromes in which parity of digits alternates.at n=30A030149
• Numbers k such that 175*2^k+1 is prime.at n=27A032464
• Cubeful (i.e., not cubefree) palindromes.at n=37A035133
• Palindromic and divisible by 8.at n=28A045643
• Palindromes n such that 4n + 1 is also a palindrome.at n=16A083831
• a(n) = T(n) concatenated with reverse(T(n)) divided by 11, where T(n) is the n-th triangular number.at n=22A084008
• Palindromic cyclops numbers.at n=21A138131
• a(n) is the number of distinct billiard words with length n on an alphabet of 4 symbols.at n=8A180239
• Number of compositions of n with exactly 3 transitions between different parts.at n=16A244715
• Compositions of n into parts 3, 4 and 7.at n=45A245368
• Number of iterations to reach a final state for an n X n lattice of sandpiles on a torus according to rules specified in the comment section.at n=12A249872
• G.f.: 1/( (1 - x/(1 - x^2/(1 - x^3/(1 - x^4/(1 - ...))))) * (1 + x/(1 + x^2/(1 + x^3/(1 + x^4/(1 + ...))))) ), a continued fraction.at n=21A285637
• Positions of records in A297025.at n=23A297026
• Number of partitions p of n such that min(p) < (number of parts of p) <= max(p).at n=40A325342
• Number of partitions p of n such that (number of numbers in p that have multiplicity 1) <= (number of numbers in p having multiplicity > 1).at n=41A330146
• a(n) is the number of edges formed by n-secting the angles of an octagon.at n=28A335771
• G.f. A(x) satisfies A(x) = 1 + x/(1+x^2)^2 * A(x)^2.at n=12A390132