23242

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 83.at n=20A020422
• Numbers n such that if p=prime(n), then p, p+6, p+12, p+18 are consecutive primes with p=6*k+5 for some k, where prime(n) denotes n-th prime.at n=39A090835
• Natural numbers written out with their digits grouped in sets of 5 (leading zeros omitted).at n=7A091341
• a(n) = p(n)*p(n+2)-p(n+1), where p(n) is the n-th prime.at n=34A152530
• Greatest number m such that the fractional part of (3/2)^A153662(n) <= 1/m.at n=10A153666
• 3-comma numbers: n occurs in the sequence S[k+1]=S[k]+10*last_digit(S[k-1])+first_digit(S[k]) for three different splittings n=concat(S[0],S[1]).at n=27A166513
• Put the natural numbers together without spaces and read them five at a time advancing one space each time.at n=35A193493
• Positions of records in A166133.at n=38A256404
• Numbers n such that A166133(n) sets a new record and also satisfies A166133(n)=A166133(n-1)^2-1.at n=23A256422
• Expansion of Product_{k>=0} 1/(1 - x^(3*k+1))^2.at n=43A261616