A131584 Concatenation of first n numbers of the decimal expansion of imaginary part of 2nd nontrivial zero of Riemann zeta function.
2, 21, 210, 2102, 21022, 210220, 2102203, 21022039, 210220396, 2102203963, 21022039638, 210220396387, 2102203963877, 21022039638771, 210220396387715, 2102203963877155, 21022039638771554, 210220396387715549
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