Final answer:
Yes, 603 is a term in this sequence. The term-to-term rule is to add 6 to each term before it. By applying the rule, we can generate the sequence and see that 603 is not one of the terms.
Step-by-step explanation:
Yes, 603 is a term of this sequence.
To determine if a number is a term of this sequence, we can use the term-to-term rule which is to add 6 to each term to get the next term.
Starting with the first term, which is 18, we can generate the sequence as follows:
18 + 6 = 24
24 + 6 = 30
30 + 6 = 36
36 + 6 = 42
42 + 6 = 48
48 + 6 = 54
54 + 6 = 60
60 + 6 = 66
66 + 6 = 72
72 + 6 = 78
78 + 6 = 84
84 + 6 = 90
90 + 6 = 96
96 + 6 = 102
102 + 6 = 108
108 + 6 = 114
114 + 6 = 120
120 + 6 = 126
126 + 6 = 132
132 + 6 = 138
138 + 6 = 144
144 + 6 = 150
150 + 6 = 156
156 + 6 = 162
162 + 6 = 168
168 + 6 = 174
174 + 6 = 180
180 + 6 = 186
186 + 6 = 192
192 + 6 = 198
198 + 6 = 204
204 + 6 = 210
210 + 6 = 216
216 + 6 = 222
222 + 6 = 228
228 + 6 = 234
234 + 6 = 240
240 + 6 = 246
246 + 6 = 252
252 + 6 = 258
258 + 6 = 264
264 + 6 = 270
270 + 6 = 276
276 + 6 = 282
282 + 6 = 288
288 + 6 = 294
294 + 6 = 300
300 + 6 = 306
306 + 6 = 312
312 + 6 = 318
318 + 6 = 324
324 + 6 = 330
330 + 6 = 336
336 + 6 = 342
342 + 6 = 348
348 + 6 = 354
354 + 6 = 360
360 + 6 = 366
366 + 6 = 372
372 + 6 = 378
378 + 6 = 384
384 + 6 = 390
390 + 6 = 396
396 + 6 = 402
402 + 6 = 408
408 + 6 = 414
414 + 6 = 420
420 + 6 = 426
426 + 6 = 432
432 + 6 = 438
438 + 6 = 444
444 + 6 = 450
450 + 6 = 456
456 + 6 = 462
462 + 6 = 468
468 + 6 = 474
474 + 6 = 480
480 + 6 = 486
486 + 6 = 492
492 + 6 = 498
498 + 6 = 504
504 + 6 = 510
510 + 6 = 516
516 + 6 = 522
522 + 6 = 528
528 + 6 = 534
534 + 6 = 540
540 + 6 = 546
546 + 6 = 552
552 + 6 = 558
558 + 6 = 564
564 + 6 = 570
570 + 6 = 576
576 + 6 = 582
582 + 6 = 588
588 + 6 = 594
594 + 6 = 600
600 + 6 = 606