A068415 Engel expansion of log(Pi/2).
3, 3, 16, 36, 211, 971, 1546, 1619, 1676, 2781, 5016, 41282, 342476, 906352, 1023757, 1948794, 7848891, 13836275, 30581008, 38602286, 170598710, 379204788, 619298045, 725045787, 1682291679, 24640189358, 24751265017, 104930341224, 139089631515, 463053103677
Offset: 1
Crossrefs
Cf. A094642.
Programs
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PARI
r=log(Pi/2); for(i=1, 30, s=r*ceil(1/r)-1; print1(ceil(1/r), ", "); r=s); /* Georg Fischer, Nov 20 2020 */
Extensions
a(1) corrected and a(28)-a(30) from Georg Fischer, Nov 20 2020