3-21G basis set for H, C and N

3-21G

!
BASIS="3-21G"
H   0
S   2 1.00
       5.44717800 0.15628500
       0.82454700 0.90469100
S   1 1.00
       0.18319200 1.00000000
****
C   0
S   3 1.00
     172.25600000 0.06176690
      25.91090000 0.35879400
       5.53335000 0.70071300
SP 2 1.00
       3.66498000 -0.39589700 0.23646000
       0.77054500 1.21584000 0.86061900
SP 1 1.00
       0.19585700 1.00000000 1.00000000
****
N   0
S   3 1.00
     242.76600000 0.05986570
      36.48510000 0.35295500
       7.81449000 0.70651300
SP 2 1.00
       5.42522000 -0.41330100 0.23797200
       1.14915000 1.22442000 0.85895300
SP 1 1.00
       0.28320500 1.00000000 1.00000000
****