67123

Appears in sequences

• a(n) is the smallest number not yet in the sequence such that the concatenation of all terms yields a periodic stream of digits 1, 2, 3, ..., 7 (repeat from 1).at n=29A165305
• Expansion of 1/(1 - x*Product_{k>=1} 1/(1 + x^k)^k).at n=23A299212
• Numbers k such that s(k) = s(k+1), where s(k) is A059975.at n=28A327250
• Numbers k such that A008475(k)+1 = A008475(k+1).at n=43A333801
• Numbers k such that A181894(k)+1 = A181894(k+1).at n=40A333802