68681

Appears in sequences

• Main diagonal of array in A083140.at n=39A083141
• Number of numerical semigroups with Frobenius number n; that is, numerical semigroups for which the largest integer not belonging to them is n.at n=31A124506
• Sequence of traces arising in study of Thue-Morse sequence.at n=36A201170
• Semiprimes formed by concatenating n, n, and 1 for n = 1, 2, 3,....at n=27A210711
• Number of arrays of median of three adjacent elements of some length-5 0..n array, with no adjacent equal elements in the latter.at n=39A229013
• Partial sums of A299268.at n=34A299269
• Numbers k such that 413*2^k+1 is prime.at n=27A323106