175277domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of (binary) bit strings of length n in which no even block of 0's is followed by an odd block of 1's.at n=19A065455Number of permutations of length n which avoid the patterns 4123 and 3412.at n=10A165544Primes that are the sum of 101 consecutive primes.at n=32A215993Prime numbersat n=15932