43255

Appears in sequences

• Number of compositions of n such that two adjacent parts are not equal modulo 5.at n=21A062203
• a(n) = (6*n+1)*(6*n+7).at n=34A085026
• Sequence of pairs numerator(s(n)), denominator(s(n)) where s(n) is the n-th partial sum of 1/A119751(n).at n=8A120340
• Numbers n which equal the sum of the prime factors of n^2+1217*n+370313.at n=13A159004
• Number of compositions [p(1), p(2), ..., p(k)] of n such that p(j) != p(j-2).at n=20A224958
• Number of length n+3 0..4 arrays with some disjoint pairs in every consecutive four terms having the same sum.at n=9A247529
• Sociable totient numbers of order 3: numbers k such that s(s(s(k))) = k, but s(k) != k, where s(k) = A092693(k) is the sum of iterated phi function.at n=4A343243