Leonhard Euler · 1748 · Internet Archive
Introductio in analysin infinitorum
All 320 leaves · leaf 297
Transcription
NUMERORUM. 269 CAP. II XVI.
$1+2+3+4+5+6+7+8+9+10+ \&c.$
$1+1+2+2+3+3+4+4+5+5+ \&c.$
$1+3+6+10+15+21+28+36+45+55+ \&c.$
$1+2+4+6+9+12+16+20+25+30+ \&c.$
$1+1+2+3+4+5+7+8+10+12+ \&c.$ III
$1+4+10+20+35+56+84+120+165+220+ \&c.$
$1+3+7+13+22+34+50+70+95+125+ \&c.$
$1+2+4+7+11+16+23+31+41+53+ \&c.$
$1+1+2+3+5+6+9+11+15+18+ \&c.$ IV
$1+5+15+35+70+126+210+330+495+715+ \&c
[TRUNCATED]
This text was produced by machine and has not been corrected by hand. Where it matters, read the scan. Confidence is the model's own, not an external check.