# A049745 (b-file synthesized from sequence entry) 0 13 1 21 2 25 3 45 4 69 5 97 6 129 7 177 8 221 9 277 10 333 11 401 12 473 13 553 14 633 15 725 16 821 17 933 18 1041 19 1153 20 1273 21 1405 22 1541 23 1685 24 1829 25 1993 26 2145 27 2313 28 2477 29 2661 30 2845 31 3041 32 3241 33 3433 34 3657 35 3869 36 4085 37 4317 38 4545 39 4809 40 5049 41 5297