1.28242712910062263687534256886979172776768892732500119206374002174040630885...

[1; 3, 1, 1, 5, 1, 1, 1, 3, 12, 4, 1, 271, 1, 1, 2, 7, 1, 35, 6, 1, 9, 4, 2, 1, 1, 2, 1, 1, 2, ...]

A = e^(1/12 - ζ'(-1))

A = e^( gamma /12 - ζ'(2)/(2 π^2)) (2 π)^(1/12)

A = exp((-24 Catalan + π + 96 π ζ^(1, 0)(-1, 1/4))/(12 π))

A = (exp(2/3 integral_0^(1/2) log(Γ(t + 1)) dt + 1/3) 2^(7/36))/π^(1/6)