My data page

More than 240000 eigenvalues corresponding to Maass cusp forms on PSL(2,Z). (80443 consecutive eigenvalues belonging to even Maass forms, 164232 consecutive eigenvalues belonging to odd Maass forms. The first 2000 eigenvalues have been computed independently by A. R. Booker and A. Strömbergsson at much higher precision. Our list of spectral parameters r agrees with theirs in at least 10 digits after the decimal point. The accuracy of the expansion coefficients of the corresponding Maass cusp forms has been checked independently using Hecke operators). --- Available on request.
A few eigenvalues corresponding to Maass cusp forms on PSL(2,Z) that exceed the 130millionth eigenvalue. (Accuracy of expansion coefficients checked with Hecke operators). --- Available on request.
First 13950 eigenvalues on PSL(2,Z[i]). (Consecutive list of eigenvalues. Accuracy of expansion coefficients checked using Hecke operators). --- Available on request.
Some more eigenvalues on PSL(2,O), where O is a ring of complex integers. --- Available on request.
First 3557 eigenvalues on Γ₀(5)⁺. (Consecutive list of eigenvalues. Accuracy of expansion coefficients checked using Hecke operators). --- Available on request.
First 12474 eigenvalues on Γ₀(6)⁺. (Consecutive list of eigenvalues. Accuracy of expansion coefficients checked using Hecke operators). --- Available on request.
Expansion coefficients of Maass cusp forms. --- Available on request.

Part of the data will be uploaded here or here.