135749

Appears in sequences

• Number of n X 4 1..2 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in nondecreasing order.at n=39A166805
• Numbers k such that Sum_{d|k} sigma(d)^3/d is an integer, where d are the divisors of k.at n=14A226566
• Expansion of 1/(1 - x - 2*x^2/(1 - 3*x^3 - 4*x^4/(1 - 5*x^5 - 6*x^6/(1 - 7*x^7 - 8*x^8/(1 - ...))))), a continued fraction.at n=15A292855