Triangular number AND sum of first m factorials

[Gerson W. Barbosa]

001 LBL A
002 DEC X
003 ENTER
004 INC X
005 LBL 00
006 INC X
007 RCL* Y
008 DSE Y
009 GTO 00
010 PSE 10
011 STO+ X
012 +/-
013 1
014 ENTER
015 ENTER
016 R/\
017 SLVQ
018 X<>Y
019 FP
020 PSE 10
021 RCL L
022 RTN

2 A -> 3 -> 0 -> 2
5 A -> 153 -> 0 -> 17



The next m should be greater than 31, but I can’t find it using the wp34s, at least not with help of this simple program…

Edited to fix a typo pointed out by Dieter below.