for n in range(1, 51): print 'n = %d: %d' % (n, n * 2 ** (n - 1))
Standard input is empty
n = 1: 1 n = 2: 4 n = 3: 12 n = 4: 32 n = 5: 80 n = 6: 192 n = 7: 448 n = 8: 1024 n = 9: 2304 n = 10: 5120 n = 11: 11264 n = 12: 24576 n = 13: 53248 n = 14: 114688 n = 15: 245760 n = 16: 524288 n = 17: 1114112 n = 18: 2359296 n = 19: 4980736 n = 20: 10485760 n = 21: 22020096 n = 22: 46137344 n = 23: 96468992 n = 24: 201326592 n = 25: 419430400 n = 26: 872415232 n = 27: 1811939328 n = 28: 3758096384 n = 29: 7784628224 n = 30: 16106127360 n = 31: 33285996544 n = 32: 68719476736 n = 33: 141733920768 n = 34: 292057776128 n = 35: 601295421440 n = 36: 1236950581248 n = 37: 2542620639232 n = 38: 5222680231936 n = 39: 10720238370816 n = 40: 21990232555520 n = 41: 45079976738816 n = 42: 92358976733184 n = 43: 189115999977472 n = 44: 387028092977152 n = 45: 791648371998720 n = 46: 1618481116086272 n = 47: 3307330976350208 n = 48: 6755399441055744 n = 49: 13792273858822144 n = 50: 28147497671065600