Question

4) What type of sequence is shown: 1, 2, 4, 7, 10,...

Answer 1

Stohr sequence

Explanation:

Let a_1=1 and define a_(n+1) to be the least integer greater than a_n which cannot be written as the sum of at most h>=2 addends among the terms a_1, a_2, ..., a_n. This defines the h-Stöhr sequence