Sums

data S0

data S1 t1

data S2 t1 t2

data S3 t1 t2 t3

data S4 t1 t2 t3 t4

data S5 t1 t2 t3 t4 t5

data S6 t1 t2 t3 t4 t5 t6

data S7 t1 t2 t3 t4 t5 t6 t7

data S8 t1 t2 t3 t4 t5 t6 t7 t8

data S9 t1 t2 t3 t4 t5 t6 t7 t8 t9

data S10 t1 t2 t3 t4 t5 t6 t7 t8 t9 t10

data S11 t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11

data S12 t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12

data S13 t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12 t13

data S14 t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12 t13 t14

data S15 t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12 t13 t14 t15