Integers m such that A342805(m) = m+3.

Terms

a(0) =15a(1) =21a(2) =78a(3) =300a(4) =528a(5) =903a(6) =990a(7) =1830a(8) =2628a(9) =3240a(10) =3570a(11) =4278a(12) =5253a(13) =5460a(14) =7503a(15) =8778a(16) =9870a(17) =13203a(18) =13530a(19) =16653a(20) =18528a(21) =20100a(22) =22578a(23) =24753a(24) =25200a(25) =29403a(26) =31878a(27) =37128a(28) =39903a(29) =45753